Hivemind Research?

I received an invite from them yesterday, to participate in an ongoing research study on COVID19. However, dont recall ever signing up with this company, nor heard of them before. I just did my 2nd survey (out of 20) today that was sent to me. After 20 days worth of short surveys, they promise a $20 incentive, but didnt say how I'd be paid yet. Any info on them? How do they pay? Are they legit?