Has there ever been a MLS player transfer get subsidized like Messi's

Talking about the fact that apple and adidas basically are putting up performance bonuses for him based on his draw to the game.

I for one think its cool and mechanism MLS should pounce on for growing the league faster. I just don't follow MLS, so not sure if this has been done before.

I know Beckham was given rights to a team on his deal though.

This is almost like the NIL stuff in NCAA, but on a massive scale.