Only update groups token when provided
Only update groups token when provided
SportsLock/SignalR-ObjC,vamsirajendra/SignalR-ObjC,wonderxboy/SignalR-ObjC,SimplifydigitalLtd/SignalR-ObjC,vamsirajendra/SignalR-ObjC,benhongh/SignalR-ObjC,ivasic/SignalR-ObjC,keyclipse/SignalR-ObjC,DyKnow/SignalR-ObjC,SimplifydigitalLtd/SignalR-ObjC,benhongh/SignalR-ObjC