Did Messi provoke Real Madrid fans at “Bernabeu”?

Was Messi gesture provocation at “Bernabeu”? This is the main question in Spain and is being discussed a lot.
Five times winnder of “Golden Ball”, Lionel Messi, secured Barcelona’s victory over Real Madrid by scoring goal in the last seconds.

After the goal, he took off the shirt, showing his name to Real Madrid fans, perhaps a message to show them that he is the “king” at the Santiago Bernabeu.

This gesture is commented a lot in social medias.