{
  "manageEntity": {
    "action": "Create",
    "entityId": "1261904054",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1261904054,\"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": "0x5ec58a28d4758468b5af81fca8840bd58963bcf8b2f70d673cd84ea0a890ba56",
    "signature": "0xe90d923a2de2417de97f7ad1c8062da0184851c87d134c39b4acddc98f59853072e619e881bc22ed0c887e5ac8026622d6438d813571b8528091e639a17268d71b",
    "signer": "0xa7B72be225A796b97FD34C11f9D57337bb58B341",
    "userId": "883910521"
  }
}