is there any way to avoid JSONObject from putting escape char?

Question

JSONObject jsonObject = new JSONObject();
jsonObject.put(BEAN, jsonUtility.getJSONFromObject(bean));

this results

{"resp1":"{\"resp2\":\"TQ\",\"resp3\":\"2016-05-31\",\"resp4\":0}"}
{"resp1":"{"resp2":"TQ","resp3":"2016-05-31","resp4":0}"}