code: function parseJson(payload)
  {
    var data;
  
    try
    {
      data = JSON.parse(payload);
    }
    catch (e)
    {
      this.logger.error({message: 'Unable to parse provided JSON', error: e, payload: payload});
    }
  
    return data;
  }
docs: Parses provided JSON payload into object
  
  @private
  @this    Fbbot#
  @param   {string} payload - JSON string to parse
  @returns {object|undefined} - parsed object or `undefined` if unable to parse