{
  "manageEntity": {
    "action": "Create",
    "entityId": "1222009275",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1222009275,\"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": "0x6e6cc51a34ddcdbaa4510eab79449b447e91579d2d976f95e55ed10e6f26cc36",
    "signature": "0x0d5f38902be7f782f012ec68cfb3987e16fbd4b3c9474067ced402078803148d1c8534bfa133f424539003abccfd0b108632eea72df43ff07b8348f069d3d2291b",
    "signer": "0x15603D478D9A230d0B82A37b716ED8C194DE4daD",
    "userId": "253360517"
  }
}