I would add a second lay box with much more moss in it. Think tight fit and you will get the idea. Squeeze the water out and then have enough to fill all the space inside the container.
On a different note the eggs may be bound but I am on the far side of tis issue away from almost everyone else. The factor to look at is if the lumps are hard or getting hard. If they are hard then you have a issue but if they are not you may have just bred her to early and she is not going to lay right now, or this year at all.
I have a female alterna in the other room that looks just like your girl and she has looked that way since I bought her cheap in September from someone who was trying to sell her because she was "egg bound". He didn't tell me she was egg bound until I asked of course. In her, the eggs are soft. I showed her to a Vet and he didn't know what to say and said surgery could be a option but he wasn't sure if it was needed or not.
So in other words you need to decide if she has hard eggs or soft and go from there. I have had one female die from egg binding but it was after she had laid some eggs. This snake not laying may mean you bred to young and she has not developed fertile eggs. A vet visit may be in order but you may put her through unnecessary surgery if the vet is not experienced.
Good Luck
Jason