{
  "manageEntity": {
    "action": "Create",
    "entityId": "519520922",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":519520922,\"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": "0xe90b5a747ff7dd6c2975650d9c1755b9920bca3348f0fe559d04504ef7d942ef",
    "signature": "0x068c67b250c60fa561b616ff424edccbf3b11b764ec4b320d1dbddce86f239cd66a9429137ddbf9d5e144b0a7865a7ab2d182e7a8587ab33d3f30dbcadc8a9561c",
    "signer": "0x4500303E05fBbcF978dbd09d73Dc6e8084A6f1b0",
    "userId": "834909005"
  }
}