{
  "manageEntity": {
    "action": "Create",
    "entityId": "1800401719",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1800401719,\"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": "0xc629e3ec2c065e91c587257a4d61f0c2947a4fd28fb91e622ce25b72652ea038",
    "signature": "0x392db1af9e82728e5dbbc0193981eead8bb399f839ec91e2fc0d4f89f35aab7765982e268c3b06fe504b33dc94f1bbde42cde374700d9406aa4dd0bfc626488a1c",
    "signer": "0xc686112A806bE009639e6Bb364e5d01bFe69C165",
    "userId": "161711667"
  }
}