/**
* @param CampaignForm $form
*
* @return array
*/
private function getMessageData(CampaignForm $form)
{
$formData = $form->getData();
$messageData = [];
$messageData[MessageEntity::BODY] = $formData[CampaignForm::WELCOME_MESSAGE];
$messageData[MessageEntity::SUBJECT] = $formData[CampaignForm::WELCOME_SUBJECT];
return $messageData;
}