{
  "manageEntity": {
    "action": "Create",
    "entityId": "1979335768",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1979335768,\"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": "0xa3ea37fcd1b58e47fb17e69a2d08608db09c3ee319f0cbd6b365d980ee2ee4a2",
    "signature": "0xd68a8755b2def0a98b85895916538a990f5da9f8e46984f3855f7ecd22af159464cdbc3733f545a2e267eda97ed7467f81ab02c142f3c2b519c88572729159b31c",
    "signer": "0x4E802f7193313C8D55a39077f1DD13479712F61b",
    "userId": "227068227"
  }
}