im in contact with this person he has a ubisoft acc too but we dont know if the keys if from the trial evolution one or not
this is the info i got
he said this
''That someone is me,
I don't know if it's one of your key or not but this key isn't a fake. I've learned about your easter egg yesterday in a memecenter post when i saw a picture of a key with the same shape as one i've found years ago in a box at home. ''