Is this what you're looking for?

This is done in Superfly.  If you are looking to do it for one hand, you would need to create either a new material grouping for each hand or an emission mask to isolate the hand.  It might be a little bit involved to get it right.  If you are looking for Firefly settings, I have to see if I have notes on a material setting.  Bagginsbill came up with one arrangement years ago but I think I have it buried somewhere.