Johnny Manziel keeps finding new arenas, and the next one comes with ropes around it. The former Texas A&M star and 2012 Heisman winner has signed on to throw hands against online personality Bob Menery , with the bout scheduled for May 23 in Las Vegas. The card will stream free across a stack of digital platforms rather than air on traditional pay-per-view. It's a debut nobody quite asked for, but plenty will tune in anyway, which has become the entire business model for this corner of combat sports. Why the bout landed at UFC Apex Earlier reports placed the fight in Miami. That plan shifted once Dana White decided he wanted the matchup under his own roof, slotting it into the UFC's in-house production facility off the Strip. White's involvement is the genuinely strange wrinkle here. Just weeks ago, he was publicly mocking the idea that Menery would even make it to fight night.…