code: function (error) {
  		if (error) {
  			var err = new Error(error.toString());
  			err.name = "l_createToken Error";
  			UTIL.safeCall(onDone, err);
  		}
  		else {
  			LOG.warn('pass_token [' + token + '] stored');
  			UTIL.safeCall(onDone, null, token);			
  		}
  	}
docs: store token back to DB