You might be able to negotiate the HJ for $60 but you can't get away for paying that room fee which is from 40 to 60, depends on the different MPs. For those room fee, you can only stay for 45 min.
Simply tell the girl that you only paid $60 for the HJ last time you were there with some other girl, and tell her that's all you have, I think she will do it for $60 , its better than you don't pay anything at all after that 45 minutes massage from her. I think she will compromise.