PS 50r Top Pair, facing River shove

[InYourMind]

PokerStars No-Limit Hold'em, 55 Tournament, 300/600 Blinds 50 Ante (9 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

MP2 (t27484)
MP3 (t13105)
CO (t45053)
Button (t34975)
SB (t7684)
BB (t35919)
Hero (UTG) (t20566)
UTG+1 (t31360)
MP1 (t25260)

Hero's M: 15.23

Preflop: Hero is UTG with A, Q
Hero bets t1400, 5 folds, Button calls t1400, 2 folds

Flop: (t4150) 6, 8, 3 (2 players)
Hero bets t1900, Button calls t1900

Turn: (t7950) 7 (2 players)
Hero checks, Button checks

River: (t7950) Q (2 players)
Hero bets t3200, Button raises to t31625 (All-In) ???????

Total pot: t14350


Seit 2 händen am tisch, villain guter reg, what to do on river? seine line macht imo null sinn ...