Plain Text Message

Description	Plain messages are simplest of the message types and are supported by all channels.

The body should be in JSON format and include the following properties:

Property	Type	Desc.
type REQUIRED	String	Value = "PLAIN"
markdownText OPTIONAL	String	Contains custom plain text message sent by end user.

BASH

"body": {
        "type": "PLAIN",
        "markdownText": "Hi"
    }