{
  "manageEntity": {
    "action": "Create",
    "entityId": "1843195617",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1843195617,\"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": "0xea91c2ab5f0ba7bb197511798f3e49b672e7ecd3c67ecd363fffb15d13fecbab",
    "signature": "0xd8224cea16c2fa0b9dd70ab69f2f590aa6d172ee3ee7cbfb55e25c6188a6a90c20c96b70933dc324f65cb575577327e192f0baeeebc4277e21e3307e0f886fed1b",
    "signer": "0x19B52DF7B9501f6b3242bD1151Cb0d1F269F3a32",
    "userId": "661681840"
  }
}