Message schema

Field	Description
_id	A canonical ID that can be used to retrieve the message.
text	Text received from bot user, or interpreted text from voice message
received	Unix timestamp of the receive time
source	The source of message, which includes the raw message from the channel

{
  "type": "image",
  "mediaUrl": "http://example.org/image.jpg",
  "text": "This is my caption"    
}

{
  "text": "Just put some vinegar on it",
  "type": "text",
  "actions": ""[
    {
      "type": "link",
      "text": "Button Label",
      "uri": "http://url.button.com"
    }
  ]
}