Paulo.... Interesting question.
I have to say the theoretical knowledge could best be covered by reading or re-reading Basic Aerobatics by Campbell and Tempest, Document all your past aerobatic training from your log book, both civil and military, including UAS, plus instructor renewals (if you are an instructor) where you will have been examined on spin entry and recovery. Include instructors/examiners names.
The AOPA qualification is really irrelevant as it was never really an approved CAA course and all this is a bit of an insult to those of us who have had excellent aerobatics outside the AOPA aerobatics course and flown aerobatics on a variety of aircraft.
Again, another example of EASA not thinking things through.