Tester Message Created Activity

{
  "key":"tester_message.created",
  "created_at":"2017-08-25T16:11:40.203Z",
  "data":{
    " comment_text”:”body message”
  },
  "uuid":"47a25dc7-e838-4de5-b49b-0d5d41510311"
}

Attribute	Type or Potential Values	Note
`key`	`tester_message.created`
`created_at`	DateTime
`data`	Hash	`tester_message.created` activities will have one key, `comment_text`.
`uuid`	UUID