docs: public RequestBuilder createFormUrlEncodedRequestBuilder(String httpUrl, String methodName, String reqBodyAsString) throws IOException {
          RequestBuilder requestBuilder = RequestBuilder
                  .create(methodName)
                  .setUri(httpUrl);
          if (reqBodyAsString != null) {
              Map<String, Object> reqBodyMap = HelperJsonUtils.readObjectAsMap(reqBodyAsString);
              List<NameValuePair> reqBody = new ArrayList<>();
               for(String key : reqBodyMap.keySet()) {
                   reqBody.add(new BasicNameValuePair(key, reqBodyMap.get(key).toString()));
               }
               HttpEntity httpEntity = new UrlEncodedFormEntity(reqBody);
               requestBuilder.setEntity(httpEntity);
              requestBuilder.setHeader(CONTENT_TYPE, APPLICATION_FORM_URL_ENCODED);
          }
          return requestBuilder;
      }