In the quiet canyons of Midtown Manhattan after dark, a short stretch of East 58th Street has become a night-life micro district jammed with town cars, velvet ropes and paparazzi. Now a Japanese-inspired nightclub called Tokya has joined the fray. Across the street from Lavo and next door to the reality-star hub Tao, this subterranean space may be smaller and more intimate, but it parties just...