Yeah, I’ve tried ast.literal_eval(s) approach, but the issue is how to reach a proper part of the whole string to run evaluation. As you just cut string to a particular part, instead of a full string '{"overriding_parameters": {"jar_params": ["{\"aggregationType\":\"Type1\",\"startDate\":\"2022-05-10\",\"endDate\":\"2022-05-10\"}"]}}' so the question is how to handle the full one