1)You will need a bypass.
2)Open Cheat Engine.
3)Attach Cheat Engine to AVA.
4)Go to where it says "Value Type", and change the value type to "String".
5)Check the check box that says "Unicode".
6)Write your name and then search for it.
7)Change your name to GM_Mackey< or anything else, but you must have "<" at the end of the nickname you choose.
8) Profit.