What happened is that he went cruising and picked up a guy on the street, who he then brought home. The guy beat him and probably robbed him as well, then took off. Can't call the cops because of the publicity, so he called his manager (this is established fact; he did not call the police, he called his manager and the manager called the police), who concocted this "Trump people beat me up" story, and then called the police once they got their story straight.
Why would he still have the rope around his neck when police arrived? Answer: it was a prop. "See?? They tried to lynch me! Those Trump people, because I'm a gay black man and everybody knows that Trump people want to kill gays and black people!!"
There is nothing about this person's story that sounds even remotely plausible, which is a pretty good sign he made it up.