Depends which angel it is, you don't have to lube the newer angels' bolt (from 05 speed onwards at least if not before that). Before the speed I don't think you have to lube the bolt, maybe rub a lightly oiled tissue on it, but that's it. You certainly don't need it to be slick with lube like impulse etc, because it is a different design.
If you use any generic paintball oil (this is very thin, put in the asa and lightly on the bolt) like love juice, you will be fine, put a drop in the asa, take your barrel off, and dry fire to work it through.
Lube is only needed for the hammer inside (I think?) , and is a lot thicker (like hair gunky stuff)- do NOT try putting this in your asa, and the bolt doesn't need lube.