NVRAM Showing Questionable Payload Variables... Can anyone verify if this is normal?

I used the terminal command in macOS 'nvram -xp':

    student:~ admin$ nvram -xp
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>ALS_Data</key>
    <data>
    AKs=
    </data>
    <key>LocationServicesEnabled</key>
    <data>
    AQ==
    </data>
    <key>SmcFlasherResult</key>
    <data>
    AAAAAAAAAAAAAAAAAAAAAA==
    </data>
    <key>SystemAudioVolume</key>
    <data>
    VA==
    </data>
    <key>SystemAudioVolumeDB</key>
    <data>
    6w==
    </data>
    <key>Test_ALS_Data</key>
    <data>
    AQA=
    </data>
    <key>backlight-level</key>
    <data>
    2Qo=
    </data>
    <key>bluetoothActiveControllerInfo</key>
    <data>
    j4KsBQAAAAAzFEjXBbzp6g==
    </data>
    <key>bluetoothInternalControllerInfo</key>
    <data>
    j4KsBQAAMxRI1wW86eo=
    </data>
    <key>boot-gamma</key>
    <data>
    EAYAAN+cAAAAAAAAwgAAAAAAAAAMAAEGTwQDDl8MySdZLFRQ5FpXXFtnXXYff6OMHJYr
    rUC5scSGz3TQ99j995Tz//zo+A4AAQesBAMOFwtQQxZGV1/CYuGHoIenneyeqabNp667
    scCxxXvKM8+w0vXWmdq66T3q/fRw9f/80voQAAIIJwQEEO8JTz6PMxJK1zxVV5RIIoh4
    biaagXqttECR7rp1lbDABZ3zzmaru+zuzf32n9v++YTh/vuH6P/9//I=
    </data>
    <key>efi-apple-payload0</key>
    <data>
    PGFycmF5PjxkaWN0PjxrZXk+SU9NYXRjaDwva2V5PjxkaWN0PjxrZXk+SU9Qcm92aWRl
    ckNsYXNzPC9rZXk+PHN0cmluZz5JT01lZGlhPC9zdHJpbmc+PGtleT5JT1Byb3BlcnR5
    TWF0Y2g8L2tleT48ZGljdD48a2V5PlVVSUQ8L2tleT48c3RyaW5nPjQ3MUE4QUI0LUVB
    NjUtNEQzMC1BM0YzLURENjhFMEEwMjRBNTwvc3RyaW5nPjwvZGljdD48L2RpY3Q+PGtl
    eT5CTExhc3RCU0ROYW1lPC9rZXk+PHN0cmluZz5kaXNrMHMxPC9zdHJpbmc+PC9kaWN0
    PjxkaWN0PjxrZXk+SU9FRklEZXZpY2VQYXRoVHlwZTwva2V5PjxzdHJpbmc+TWVkaWFG
    aWxlUGF0aDwvc3RyaW5nPjxrZXk+UGF0aDwva2V5PjxzdHJpbmc+XEVGSVxBUFBMRVxV
    UERBVEVSU1xTTUNcTWFjLTdERjIxQ0IzRUQ2OTc3RTUuc21jPC9zdHJpbmc+PC9kaWN0
    PjwvYXJyYXk+AA==
    </data>
    <key>efi-apple-payload0-data</key>
    <data>
    AgEMANBBAwoAAAAAAQEGAAUcAQEGAAAAAxIKAAAAAAAAAAQBKgABAAAAKAAAAAAAAAAA
    QAYAAAAAALSKGkdl6jBNo/PdaOCgJKUCAgQEZgBcAEUARgBJAFwAQQBQAFAATABFAFwA
    VQBQAEQAQQBUAEUAUgBTAFwAUwBNAEMAXABNAGEAYwAtADcARABGADIAMQBDAEIAMwBF
    AEQANgA5ADcANwBFADUALgBzAG0AYwAAAH//BAA=
    </data>
    <key>efi-apple-payload1</key>
    <data>
    PGFycmF5PjxkaWN0PjxrZXk+SU9NYXRjaDwva2V5PjxkaWN0PjxrZXk+SU9Qcm92aWRl
    ckNsYXNzPC9rZXk+PHN0cmluZz5JT01lZGlhPC9zdHJpbmc+PGtleT5JT1Byb3BlcnR5
    TWF0Y2g8L2tleT48ZGljdD48a2V5PlVVSUQ8L2tleT48c3RyaW5nPjQ3MUE4QUI0LUVB
    NjUtNEQzMC1BM0YzLURENjhFMEEwMjRBNTwvc3RyaW5nPjwvZGljdD48L2RpY3Q+PGtl
    eT5CTExhc3RCU0ROYW1lPC9rZXk+PHN0cmluZz5kaXNrMHMxPC9zdHJpbmc+PC9kaWN0
    PjxkaWN0PjxrZXk+SU9FRklEZXZpY2VQYXRoVHlwZTwva2V5PjxzdHJpbmc+TWVkaWFG
    aWxlUGF0aDwvc3RyaW5nPjxrZXk+UGF0aDwva2V5PjxzdHJpbmc+XEVGSVxBUFBMRVxV
    UERBVEVSU1xTTUNcZmxhc2hlcl9iYXNlLnNtYzwvc3RyaW5nPjwvZGljdD48L2FycmF5
    PgA=
    </data>
    <key>efi-apple-payload1-data</key>
    <data>
    AgEMANBBAwoAAAAAAQEGAAUcAQEGAAAAAxIKAAAAAAAAAAQBKgABAAAAKAAAAAAAAAAA
    QAYAAAAAALSKGkdl6jBNo/PdaOCgJKUCAgQEVgBcAEUARgBJAFwAQQBQAFAATABFAFwA
    VQBQAEQAQQBUAEUAUgBTAFwAUwBNAEMAXABmAGwAYQBzAGgAZQByAF8AYgBhAHMAZQAu
    AHMAbQBjAAAAf/8EAA==
    </data>
    <key>efi-apple-payload2</key>
    <data>
    PGFycmF5PjxkaWN0PjxrZXk+SU9NYXRjaDwva2V5PjxkaWN0PjxrZXk+SU9Qcm92aWRl
    ckNsYXNzPC9rZXk+PHN0cmluZz5JT01lZGlhPC9zdHJpbmc+PGtleT5JT1Byb3BlcnR5
    TWF0Y2g8L2tleT48ZGljdD48a2V5PlVVSUQ8L2tleT48c3RyaW5nPjQ3MUE4QUI0LUVB
    NjUtNEQzMC1BM0YzLURENjhFMEEwMjRBNTwvc3RyaW5nPjwvZGljdD48L2RpY3Q+PGtl
    eT5CTExhc3RCU0ROYW1lPC9rZXk+PHN0cmluZz5kaXNrMHMxPC9zdHJpbmc+PC9kaWN0
    PjxkaWN0PjxrZXk+SU9FRklEZXZpY2VQYXRoVHlwZTwva2V5PjxzdHJpbmc+TWVkaWFG
    aWxlUGF0aDwvc3RyaW5nPjxrZXk+UGF0aDwva2V5PjxzdHJpbmc+XEVGSVxBUFBMRVxV
    UERBVEVSU1xTTUNcZmxhc2hlcl91cGRhdGUuc21jPC9zdHJpbmc+PC9kaWN0PjwvYXJy
    YXk+AA==
    </data>
    <key>efi-apple-payload2-data</key>
    <data>
    AgEMANBBAwoAAAAAAQEGAAUcAQEGAAAAAxIKAAAAAAAAAAQBKgABAAAAKAAAAAAAAAAA
    QAYAAAAAALSKGkdl6jBNo/PdaOCgJKUCAgQEWgBcAEUARgBJAFwAQQBQAFAATABFAFwA
    VQBQAEQAQQBUAEUAUgBTAFwAUwBNAEMAXABmAGwAYQBzAGgAZQByAF8AdQBwAGQAYQB0
    AGUALgBzAG0AYwAAAH//BAA=
    </data>
    <key>efi-apple-payload3</key>
    <data>
    PGFycmF5PjxkaWN0PjxrZXk+SU9NYXRjaDwva2V5PjxkaWN0PjxrZXk+SU9Qcm92aWRl
    ckNsYXNzPC9rZXk+PHN0cmluZz5JT01lZGlhPC9zdHJpbmc+PGtleT5JT1Byb3BlcnR5
    TWF0Y2g8L2tleT48ZGljdD48a2V5PlVVSUQ8L2tleT48c3RyaW5nPjQ3MUE4QUI0LUVB
    NjUtNEQzMC1BM0YzLURENjhFMEEwMjRBNTwvc3RyaW5nPjwvZGljdD48L2RpY3Q+PGtl
    eT5CTExhc3RCU0ROYW1lPC9rZXk+PHN0cmluZz5kaXNrMHMxPC9zdHJpbmc+PC9kaWN0
    PjxkaWN0PjxrZXk+SU9FRklEZXZpY2VQYXRoVHlwZTwva2V5PjxzdHJpbmc+TWVkaWFG
    aWxlUGF0aDwvc3RyaW5nPjxrZXk+UGF0aDwva2V5PjxzdHJpbmc+XEVGSVxBUFBMRVxV
    UERBVEVSU1xTTUNcTWFjLTdERjIxQ0IzRUQ2OTc3RTUuZXBtPC9zdHJpbmc+PC9kaWN0
    PjwvYXJyYXk+AA==
    </data>
    <key>efi-apple-payload3-data</key>
    <data>
    AgEMANBBAwoAAAAAAQEGAAUcAQEGAAAAAxIKAAAAAAAAAAQBKgABAAAAKAAAAAAAAAAA
    QAYAAAAAALSKGkdl6jBNo/PdaOCgJKUCAgQEZgBcAEUARgBJAFwAQQBQAFAATABFAFwA
    VQBQAEQAQQBUAEUAUgBTAFwAUwBNAEMAXABNAGEAYwAtADcARABGADIAMQBDAEIAMwBF
    AEQANgA5ADcANwBFADUALgBlAHAAbQAAAH//BAA=
    </data>
    <key>efi-apple-recovery</key>
    <data>
    PGFycmF5PjxkaWN0PjxrZXk+SU9NYXRjaDwva2V5PjxkaWN0PjxrZXk+SU9Qcm92aWRl
    ckNsYXNzPC9rZXk+PHN0cmluZz5JT01lZGlhPC9zdHJpbmc+PGtleT5JT1Byb3BlcnR5
    TWF0Y2g8L2tleT48ZGljdD48a2V5PlVVSUQ8L2tleT48c3RyaW5nPjQ3MUE4QUI0LUVB
    NjUtNEQzMC1BM0YzLURENjhFMEEwMjRBNTwvc3RyaW5nPjwvZGljdD48L2RpY3Q+PGtl
    eT5CTExhc3RCU0ROYW1lPC9rZXk+PHN0cmluZz5kaXNrMHMxPC9zdHJpbmc+PC9kaWN0
    PjxkaWN0PjxrZXk+SU9FRklEZXZpY2VQYXRoVHlwZTwva2V5PjxzdHJpbmc+TWVkaWFG
    aWxlUGF0aDwvc3RyaW5nPjxrZXk+UGF0aDwva2V5PjxzdHJpbmc+XEVGSVxBUFBMRVxG
    SVJNV0FSRVxNQkE2MS5zY2FwPC9zdHJpbmc+PC9kaWN0PjwvYXJyYXk+AA==
    </data>
    <key>efi-backup-boot-device</key>
    <data>
    PGFycmF5PjxkaWN0PjxrZXk+SU9NYXRjaDwva2V5PjxkaWN0PjxrZXk+SU9Qcm92aWRl
    ckNsYXNzPC9rZXk+PHN0cmluZz5JT01lZGlhPC9zdHJpbmc+PGtleT5JT1Byb3BlcnR5
    TWF0Y2g8L2tleT48ZGljdD48a2V5PlVVSUQ8L2tleT48c3RyaW5nPkRCOUFFQ0Y2LTg2
    QzYtNDcyOS1CRTk5LUM2N0MzREIxMzgwQTwvc3RyaW5nPjwvZGljdD48L2RpY3Q+PGtl
    eT5CTExhc3RCU0ROYW1lPC9rZXk+PHN0cmluZz5kaXNrMXMyPC9zdHJpbmc+PC9kaWN0
    PjxkaWN0PjxrZXk+SU9FRklEZXZpY2VQYXRoVHlwZTwva2V5PjxzdHJpbmc+TWVkaWFG
    aWxlUGF0aDwvc3RyaW5nPjxrZXk+UGF0aDwva2V5PjxzdHJpbmc+XDFBMzk2RjBBLTlD
    NjYtMzVGMy05ODA1LTQ2RDBGNEZENjdCNVxTeXN0ZW1cTGlicmFyeVxDb3JlU2Vydmlj
    ZXNcYm9vdC5lZmk8L3N0cmluZz48L2RpY3Q+PC9hcnJheT4A
    </data>
    <key>efi-backup-boot-device-data</key>
    <data>
    AgEMANBBAwoAAAAAAQEGAAUcAQEGAAAAAxIKAAAAAAAAAAQBKgACAAAAKEAGAAAAAACw
    vxkOAAAAACCV+WedIUZClu42JCLFaBoCAgQDJAD3/HS+fAvzSZFHAfQELmhC9uya28aG
    KUe+mcZ8PbE4CgQEmgBcADEAQQAzADkANgBGADAAQQAtADkAQwA2ADYALQAzADUARgAz
    AC0AOQA4ADAANQAtADQANgBEADAARgA0AEYARAA2ADcAQgA1AFwAUwB5AHMAdABlAG0A
    XABMAGkAYgByAGEAcgB5AFwAQwBvAHIAZQBTAGUAcgB2AGkAYwBlAHMAXABiAG8AbwB0
    AC4AZQBmAGkAAAB//wQA
    </data>
    <key>efi-backup-boot-device-data-data</key>
    <data>
    AgEMANBBAwoAAAAAAQEGAAUcAQEGAAAAAxIKAAAAAAAAAAQBKgACAAAAKEAGAAAAAACw
    vxkOAAAAACCV+WedIUZClu42JCLFaBoCAgQDJAD3/HS+fAvzSZFHAfQELmhC9uya28aG
    KUe+mcZ8PbE4CgQEmgBcADEAQQAzADkANgBGADAAQQAtADkAQwA2ADYALQAzADUARgAz
    AC0AOQA4ADAANQAtADQANgBEADAARgA0AEYARAA2ADcAQgA1AFwAUwB5AHMAdABlAG0A
    XABMAGkAYgByAGEAcgB5AFwAQwBvAHIAZQBTAGUAcgB2AGkAYwBlAHMAXABiAG8AbwB0
    AC4AZQBmAGkAAAB//wQA
    </data>
    <key>efi-boot-device</key>
    <data>
    PGFycmF5PjxkaWN0PjxrZXk+SU9NYXRjaDwva2V5PjxkaWN0PjxrZXk+SU9Qcm92aWRl
    ckNsYXNzPC9rZXk+PHN0cmluZz5JT01lZGlhPC9zdHJpbmc+PGtleT5JT1Byb3BlcnR5
    TWF0Y2g8L2tleT48ZGljdD48a2V5PlVVSUQ8L2tleT48c3RyaW5nPkRCOUFFQ0Y2LTg2
    QzYtNDcyOS1CRTk5LUM2N0MzREIxMzgwQTwvc3RyaW5nPjwvZGljdD48L2RpY3Q+PGtl
    eT5CTExhc3RCU0ROYW1lPC9rZXk+PHN0cmluZz5kaXNrMXMyPC9zdHJpbmc+PC9kaWN0
    PjxkaWN0PjxrZXk+SU9FRklEZXZpY2VQYXRoVHlwZTwva2V5PjxzdHJpbmc+TWVkaWFG
    aWxlUGF0aDwvc3RyaW5nPjxrZXk+UGF0aDwva2V5PjxzdHJpbmc+XDFBMzk2RjBBLTlD
    NjYtMzVGMy05ODA1LTQ2RDBGNEZENjdCNVxTeXN0ZW1cTGlicmFyeVxDb3JlU2Vydmlj
    ZXNcYm9vdC5lZmk8L3N0cmluZz48L2RpY3Q+PC9hcnJheT4A
    </data>
    <key>efi-boot-device-data</key>
    <data>
    AgEMANBBAwoAAAAAAQEGAAUcAQEGAAAAAxIKAAAAAAAAAAQBKgACAAAAKEAGAAAAAACw
    vxkOAAAAACCV+WedIUZClu42JCLFaBoCAgQDJAD3/HS+fAvzSZFHAfQELmhC9uya28aG
    KUe+mcZ8PbE4CgQEmgBcADEAQQAzADkANgBGADAAQQAtADkAQwA2ADYALQAzADUARgAz
    AC0AOQA4ADAANQAtADQANgBEADAARgA0AEYARAA2ADcAQgA1AFwAUwB5AHMAdABlAG0A
    XABMAGkAYgByAGEAcgB5AFwAQwBvAHIAZQBTAGUAcgB2AGkAYwBlAHMAXABiAG8AbwB0
    AC4AZQBmAGkAAAB//wQA
    </data>
    <key>fmm-computer-name</key>
    <data>
    c3R1ZGVudA==
    </data>
    <key>fmm-mobileme-token-FMM</key>
    <data>
    YnBsaXN0MDDdAQIDBAUGBwgJCgsMDQ4PFhcOGA4ZGhscHR9fEA91bnJlZ2lzdGVyU3Rh
    dGVYdXNlckluZm9ZYXV0aFRva2VuXxARb3NVc2VyRGlzYXBwZWFyZWReZGlzYWJsZUNv
    bnRleHRWdXNlcmlkXWVuYWJsZUNvbnRleHRYdXNlcm5hbWVYcGVyc29uSURXYWRkVGlt
    ZVRndWlkXxASZW5hYmxlZERhdGFjbGFzc2VzXxATZGF0YWNsYXNzUHJvcGVydGllcxAA
    0xAREhMUFV8QFUluVXNlT3duZXJEaXNwbGF5TmFtZV8QE0luVXNlT3duZXJGaXJzdE5h
    bWVfEBJJblVzZU93bmVyTGFzdE5hbWVcWXVqaSBPa2FtdXJhVFl1amlXT2thbXVyYV8Q
    KEFRQUFBQUJaSE5laWdadGl5VUg4dlZ6Q3JDMnN1MmxadUoxNTZXc34JEQH1XxAbeXVq
    aS5va2FtdXJhQG91c2QuazEyLmNhLnVzWjgzNDQxNzE4MDEjQdZHNekcAypfECQzMzYw
    MkRERS1EMzI3LTRBRjYtOUY3MS03ODY2MzZERjM3NjOhHl8QIWNvbS5hcHBsZS5EYXRh
    Y2xhc3MuRGV2aWNlTG9jYXRvctEeINUhIiMkJSYnKCkqVmFwc0Vudlhob3N0bmFtZV1p
    ZHNJZGVudGlmaWVyVnNjaGVtZV1hdXRoTWVjaGFuaXNtWlByb2R1Y3Rpb25fEBNwMjYt
    Zm1pcC5pY2xvdWQuY29tXxAkRDQ0MDFGNEUtRkI3QS00M0EyLThCRUEtMDhFMUM2RDAz
    NjU4VWh0dHBzVXRva2VuAAgAIwA1AD4ASABcAGsAcgCAAIkAkgCaAJ8AtADKAMwA0wDr
    AQEBFgEjASgBMAFbAVwBXwF9AYgBkQG4AboB3gHhAewB8wH8AgoCEQIfAioCQAJnAm0A
    AAAAAAACAQAAAAAAAAArAAAAAAAAAAAAAAAAAAACcw==
    </data>
    <key>fmm-mobileme-token-FMM-BridgeHasAccount</key>
    <data>
    QnJpZGdlSGFzQWNjb3VudFZhbHVl
    </data>
    <key>prev-lang:kbd</key>
    <data>
    ZW4tVVM6MA==
    </data>
</dict>
</plist>

Solution 1:

It all looks pretty normal, as far as I can tell. Yours looks not dissimilar to mine. The data is encoding in base64, and decoded gives things like:

<array><dict><key>IOMatch</key><dict><key>IOProviderClass</key><string>IOMedia</string><key>IOPropertyMatch</key><dict><key>UUID</key><string>471A8AB4-EA65-4D30-A3F3-DD68E0A024A5</string></dict></dict><key>BLLastBSDName</key><string>disk0s1</string></dict><dict><key>IOEFIDevicePathType</key><string>MediaFilePath</string><key>Path</key><string>\EFI\APPLE\FIRMWARE\MBA61.scap</string></dict></array>�