{
  "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},{\"timestamp\":0,\"metadata_timestamp\":1781630461,\"track_id\":1230917099},{\"timestamp\":0,\"metadata_timestamp\":1781630471,\"track_id\":146073894}]}}",
    "nonce": "0x2fc1d5a900269041f6729132f631220dfbe75d80190c5d77b371e19343229547",
    "signature": "0x144cd3885ffb148a5ff2012487d3f8aa6974c43c2325cefe17ad01c0319949642a68638c3c8f1b77acc8843f486a39879f5284c8d0e4e22e3eee80d2b80993731b",
    "signer": "0x2fff7071097d912DEaB17B33e448D7280cEe0723",
    "userId": "655790469"
  }
}