{
  "manageEntity": {
    "action": "Create",
    "entityId": "1643016267",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1643016267,\"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": "0xb4b6079800fc4aa723f9fa9841453f78eb4c0ed7f897f2f36dd72620213599b8",
    "signature": "0xf3d32b5e04aca0c4951785ad83fa759637ea41148192330c057dcf6ad91ed97a3242ce7d879d37aa94fa6104fed33ed38238ef92b4196bdb21e08d51793302341b",
    "signer": "0x7c9023569D0688566422657303CC9788011C2a7d",
    "userId": "621534741"
  }
}