Save it in a page and open it with browser after you can extract your prefered data in variable to use it.
You can create a simple html page with inside this json, open it with browser (in locally works too) with ui vision extract data with storetext and save it after you can paste in every site you want.
Sometimes i extract from some sites that provide json is the same thing to extract data to tables or sites.
How do you actually use the JSON data to fill fields though. storeText seems to just store the JSON as a string. Is there a way to parse the JSON to get the required data within UI.Vision?