You played it great. Suited ace is a standard defend from the BB. We don't want to GII OTF vs UTG. Flat call is good. Turn is standard x/c with showdown value + draw. River is a bet, and I like your sizing. He could reasonably have better two pair and sets. A large bet isolates those hands too much and definitely makes him fold one pair, given we so credibly rep Jx. Blocker bet river is a good play.