javascript – regex for stringify json

I have the following string trying to remove clean with regex

 {"background-color":"rgb(11,144,213);","transform":"translate(11px, 144px) transform: skew(11deg, 144deg);"}

trying to find the right regex so that the final output would be a string and look like this:

 "background-color:rgb(11,144,213);transform:translate(11px, 144px) transform: skew(11deg, 144deg);"

I got this so far but not quite right

/[{[","|*"}]/g 

I’m really struggling with “,”