Dump it.

Potting river slightly overreps your hand, so it's rarely bluff if some non-laggy player raises you here. It's limped pot and lots of money behind, lower kicker cannot raise this board and everything lower than boat is forced to flat call because it may face a shove if the betting is re-opened. It's also really sick move to bluff river against such a strength as PSB because you rep stronger hand than you actually have. If he has you on air he'll also call but not raise.