You would want to use the “Deserialize JSON” Activity To Turn that string into a JObject. Then you could use a for each loop to iterate through each JRow in the Jobject. I’ll find a sample activity for you to check out in a sec.
Sauce- Extract data from http response - #7 by Mr_Meeseeks
The Documentation is really nice for this activity. There is a sample XAML file in there for you- https://docs.uipath.com/activities/docs/deserialize-json