// TODO: make it private
  public void saveUserSelectionToJsonFile(Map<String, Object> newFullJsonMap) {
    try {
      fullJsonMap = newFullJsonMap;
      Object jsonString = JsonHelper.toJSON(newFullJsonMap);
      Crashlytics.log(Log.INFO, LOG_TAG, "Updating fullJson - " + jsonString.toString());

      userSelectionMap = getUserFeedMapFromJsonMap(fullJsonMap);
      Crashlytics.log(
          Log.INFO, LOG_TAG, "Updated UserSelectionMap - " + userSelectionMap.toString());

      writeToInternalStorage(jsonString.toString(), NEWS_CAT_FILE);
    } catch (JSONException e) {
      e.printStackTrace();
    }
  }