Actually, Soros has been proven to "pay" people to protest. Actual evidence. What he does is give "directors" money to pay people in cash, in advance, to protest. When they are arrested they already have bail money. This was done as recently as Kavannaugh's job interview (so to speak).
Now whether paying people beyond stuff like that hasn't really been proven, although it has been highly suspected by both lefties and righties before Dr. Ford's accusation was flung out.