I have this structured df (json) which includes another json and I want to combine them to access all the values:

{"index":"exp-000005","type":"_doc","score":9.502488,"source":{"verb":"REPLIED","timestamp":"2022-01-20T08:14:00+00:00","in_context":{"screen_width":"3440","screen_height":"1440","build_version":"7235","question":"Hallo","request_time":"403","status":"success"}}}

How can I combine this structured json to one unstructured json? In R I used tbl_json. Maybe there is something similar for python?