webhook_message_delete.json

{
    "attachments": [
        {
            "blocks": [
                {
                    "type": "section",
                    "block_id": "fake_block_id",
                    "text": {
                        "type": "mrkdwn",
                        "text": "I'M A CODFISH!"
                    }
                }
            ]
        }
    ],
    "blocks": [
        {
            "type": "section",
            "block_id": "fake_block_id",
            "text": {
                "type": "mrkdwn",
                "text": "I'm a codfish."
            }
        },
        {
            "type": "section",
            "block_id": "fake_block_id",
            "text": {
                "type": "mrkdwn",
                "text": "Louder!"
            }
        }
    ],
    "response_type": "in_channel",
    "delete_original": true,
    "unfurl_links": true,
    "unfurl_media": true,
    "metadata": {
        "sender": "Walt"
    }
}