{
  "manageEntity": {
    "action": "Create",
    "entityId": "18434154",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":18434154,\"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": "0xb7fca62685489d744174cfc44175c1373049b4ef0bda1fdebc5ca0dfeb0e4d0e",
    "signature": "0x188c51602fc0f97a6160bfd2d8d91b5a576661350df9e0acf50d929aa7ec1d22594417423dbdc647d1781cc3a0db87c9887dd414f61fd3c61fc8f3a521fe45481c",
    "signer": "0x4500303E05fBbcF978dbd09d73Dc6e8084A6f1b0",
    "userId": "834909005"
  }
}