{
  "manageEntity": {
    "action": "Create",
    "entityId": "1201843670",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1201843670,\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0xbc8fd9fbcf5e54f92530dcf18bf5885d539d68250d35010146f597519baebd08",
    "signature": "0xfa0d8ac6536b3ce6714713e7f5f0b3ce6bb72c84a6883ec5fa3d5247a551d47023fa0d33e6284b35b01d67e0d29ed4ccd92bb1d788299911cc4cbba542281cf51b",
    "signer": "0x54c11E98317FC90475e191c33b86bda098B57A59",
    "userId": "182045363"
  }
}