{
  "manageEntity": {
    "action": "Update",
    "entityId": "504519602",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":false,\"playlist_image_sizes_multihash\":\"baeaaaiqseatoi7pdij7tfnjbrg5ylrlbp6rz57inbyr62vyrp6fcz6lmrs2ki\",\"release_date\":\"2026-06-16T17:18:51.000Z\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[{\"timestamp\":0,\"metadata_timestamp\":1781630441,\"track_id\":203754864},{\"timestamp\":0,\"metadata_timestamp\":1781630447,\"track_id\":574262830}]}}",
    "nonce": "0xacac753b48b06069df85e51e35b62a2b8e9223f2b37d67c4d8eff65ffc72d789",
    "signature": "0xbdea7350d87c8e9d782a278dbf11b82135b8d8d1018d761de73f8705fc9eda7a25837c33f4d471ff1aafb4343a3fd391e1312ae74a1348ecc330635c995eea031b",
    "signer": "0x2fff7071097d912DEaB17B33e448D7280cEe0723",
    "userId": "655790469"
  }
}