{
  "manageEntity": {
    "action": "Create",
    "entityId": "504519602",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":504519602,\"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": "0xb63929567cb1aa7f1e5d6bb6c86ca507dffed0dbfafe7852d00244e4c17ab306",
    "signature": "0xc5f3eb86bdcd68207dbeebd3a1e29ea3681018d37af0115ec6cdbfa512ef875105b3ee1a49480728be29a7f99a9b158c21b5e10c13cfaf0ee12c9613044d70c21c",
    "signer": "0x2fff7071097d912DEaB17B33e448D7280cEe0723",
    "userId": "655790469"
  }
}