Just wanted to circle back around and share what I learned from Thunkable support community. I was able to get the blocks to work. The Login response object actually had no issues (userId is not a property of these Object from JSON responses in the first place, sorry for the confusion). The Get block returns an array so this is what works:
I know this is for backendless support and this post might seem out of place and might even be removed. In case it doesn’t, hopefully others find it helpful if they search here. Peace and blessings!
-Hero