MessageContentSticker(Content sticker message)

{
    "id": "string",
    "link": "string",
    "mime_type": "string",
    "file_size": 0,
    "file_name": "string",
    "sha256": "string",
    "timestamp": 0,
    "animated": true,
    "width": 0,
    "height": 0,
    "preview": "string",
    "view_once": true
}