AppleConversationParams

[
    {
        "receiver": "3cb69db1-c410-4b83-8d37-84b823be9c06",
        "type": "text_with_attachment",
        "data": {
            "message": "Hi, this is text message.",
            "attachments": [
                {
                    "url": "https://attachment-url"
                }
            ]
        }
    }
]