General Event Request Structure

{
   "event":"contact.mail_sent",
   "contact_external_id":null,
   "contact_email":"[email protected]",
   "contact_first_name":"Alice",
   "contact_last_name":"Wonder",
   "contact_attachments":[
      {
         "url":"https://cdn-dev.wowing.io/media/123123/attachments/img.jpeg",
         "mime_type":"image/jpeg",
         "attach_to_email":true,
         "attach_to_landing_page":true,
         "file_size":931686,
         "note":"IMG_0513"
      }
   ],
   "automation_id":1,
   "automation_name":"List",
   "payload":{
      // event specific
   }
}