$400NL value raise or shove?

[StructureK]

Im really not worried about if im beat here, just how I can extract the most money

I really don't know what kind of hand he can raise here other than the A [img]/images/graemlins/club.gif[/img] or a bluff, and if has the A [img]/images/graemlins/club.gif[/img], I don't see how he can fold

$2/$4 NL Hold'em Cash Game, 5 Players
LeggoPoker Hand History Converter

BTN: $442
SB: $715.30
Hero (BB): $1,148.30
UTG: $591.30
CO: $1,035.55

Pre-Flop: K[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] dealt to Hero (BB)
UTG calls $4, 3 folds, Hero checks

Flop: ($10) K[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/club.gif[/img] 6[img]/images/graemlins/club.gif[/img] (2 Players)
Hero checks, <font color="red">UTG bets $10</font>, Hero calls $10

Turn: ($30) 2[img]/images/graemlins/club.gif[/img] (2 Players)
Hero checks, UTG checks

River: ($30) K[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $22</font>, <font color="red">UTG raises to $96</font>, Hero?