public function createEvent($eventName, $brandId = null, $eventDate = null)
    {
        if (is_null($eventName) || $eventName == '') {
            throw new Exception('The eventName is required to create a new event.');
        }

        $params = array(
            'method' => 'sp.event.create',
            'event_name' => $eventName
        );

        if (strlen($brandId) > 0) {
            $params['brand_id'] = $brandId;
        }

        if (strlen($eventDate) > 0) {
            $params['event_date'] = $eventDate;
        }

        return $this->_makeApiRequest($params);
    }