code: function(token, cb){
        // deserialize the token iss
        var _iss = token.iss.split('|');
  
        waterlock.User.findOne(_iss[0]).exec(function(err, user){
          if(err){
            waterlock.logger.debug(err);
          }
  
          cb(err, user);
        });
      }
docs: Find the user the give token is issued to
  
  @param  {Object}   token The parsed token
  @param  {Function} cb    Callback to be called when a user is
  found or an error has occured