User ID

Payload of the request to reply on behalf of a contact using their user_id

user_id required	string The external_id you have defined for the contact.
	Array of objects (Conversation attachment files) <= 10 items A list of files that will be added as attachments. You can include up to 10 files.
message_type required	string Value: "comment"
type required	string Value: "user"
body required	string The text body of the comment.
created_at	integer The time the reply was created. If not provided, the current time will be used.
attachment_urls	Array of strings <uri> (Attachment URLs) <= 10 items A list of image URLs that will be added as attachments. You can include up to 10 URLs.

{ "user_id": "string", "attachment_files": [ { "content_type": "application/json", "data": "ewogICJ0ZXN0IjogMQp9", "name": "test.json" } ], "message_type": "comment", "type": "user", "body": "string", "created_at": 1590000000, "attachment_urls": [ "http://example.com" ] }