How to indicate middle name is preferred name in professional email signature

In almost all situations, I prefer to be addressed by my legal middle name. However, in the email signature (what's automatically included at the bottom of the email) of my university email, I must include my legal first name, leading most people in emails to address me by it rather than my middle name. I was wondering how I could indicate in my (professional) email signature that I prefer to be addressed by my middle name. Would I write: FirstName "MiddleName" LastName?

Personally, I use my first initial and my full middle and full last name, as in E. Gary Gygax. Another option is to use your full first and full last name with your middle initial. Then, add your preferred name just before your last name in quotation marks. An example is Edwin Eugene “Buzz” Aldrin, Jr.