I think the standard term used is r&t, rub and tug. That kind of states without saying it, massage and hand release. And the client who is looking for massage and hj know enough to ask what the restrictions are, because they are well aware that some r&t providers remain fully clothed, some will be clothed but allow limited touching, some might go topless no touching, some topless with above waist touching, some nude no touch, some nude full touch, some GFE which is basically a GFE without full service included meaning kissing, daty, possible cbj? But the main thing is full service not offered, not requested, not expected.
It isn't a very appealing term tho, so usually what you want to advertise is sensual massage with release. That should be enough to attract the guys looking for r&t with no expectations. It is then important that you indicate what your limits are. Most guys don't mind restrictions, as long as they know before arrival what they are going to be. If something, like digits and/or nudity is important to them, then a fully clothed no touch r&t provider is not going to be someone they book appts with. Also, if you do not want genital touching of any kind, then you let them know your sessions can be topliess, but not fully nude. Most clients understand the presence of panties means the area is not available lol.
Other helpful words are: mature, older, gentlemen, massage, sensual, tease, arousal, relaxing, rejuvenating, pampering, stress free, etc.
Anything that indicates that this is a session where they don't have to do anything, that everything is done to them and for them, and that they are expected to be mature gentlemen who know enough to ask before they do something they have not been invited to do, or something it has not been made clear is OK.