{
  "manageEntity": {
    "action": "Create",
    "entityId": "550387082",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":550387082,\"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": "0x4e2c75806955a0b6ae1ff8d5cfa9d157130e9f8589b17fc239fa42571e166672",
    "signature": "0xc2ef506a9bdb7f22192d6be6d4411e8ec87e9dc4316d7df9c8d9cb1924f8ab2c274b21ad4357181b618f4fb0ca6973eab68778e4210875f6de9b2472eb7ea5b61c",
    "signer": "0x1Db70Bb69dcFdB8aed377EAa1909e802c53cC534",
    "userId": "545770822"
  }
}