code: private Map<String, String> toPayload(Map<String, Object> data) throws LocalOperationException {
          Map<String, Object> dataClone = new HashMap<String, Object>(data);
          dataClone.put("auth", getAuthData());
  
          Map<String, String> payload = new HashMap<String, String>();
          payload.put("params", jsonifyData(dataClone));
  
          if (transloadit.shouldSignRequest) {
              payload.put("signature", getSignature(jsonifyData(dataClone)));
          }
          return payload;
      }
docs: Returns data tree structured as Transloadit expects it.
  
  @param data
  @return {@link Map}
  @throws LocalOperationException