{
  "manageEntity": {
    "action": "Create",
    "entityId": "1045665363",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1045665363,\"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": "0xf70d97c362cb6ec69d5f78c8a00ee35120465ce4eccd3152ad05ed1ecf22f026",
    "signature": "0xd2b937d50c381f2f0d38c9d87b31be006aab0be53267285cb720ebadc94d831e692e1d178010bcfffd640fbb3129b0fd87423065a1602e596ce9451a605719ba1c",
    "signer": "0xD449c8DFa572fEED5a806cBc774F686025Cc7AC9",
    "userId": "111392384"
  }
}