code: def signed_data_match(self, data, matched_data, url_safe=True):
          
          try:
              u_data = self.unsign_data(data, url_safe=url_safe)
              return u_data == matched_data
          except Exception as e:
              return False
docs: See if a data matched a signed one
          :param data:
          :param matched_data:
          :param url_safe:
          :return: