{
  "manageEntity": {
    "action": "Update",
    "entityId": "1031759705",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqseb4hpldhpvc35mjhtqnrnetyb52chel5jl5zwajntmn5674bmlbxi\",\"release_date\":\"2025-08-21T02:33:34.000Z\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":true,\"playlist_contents\":[{\"timestamp\":0,\"metadata_timestamp\":1786032342,\"track_id\":704918922},{\"timestamp\":0,\"metadata_timestamp\":1786032373,\"track_id\":712861704},{\"timestamp\":0,\"metadata_timestamp\":1786032466,\"track_id\":1550413560}]}}",
    "nonce": "0xdbe3a009915e656868b484dfe0c465e7b560e93547dad7c4e3fc3757e02710be",
    "signature": "0xf690fcfe9642acec0792c36bfee8ac59cfc927d804aa35b624687d33381ff4c05e753803252264531f68f057b304b536fa95228c049270facbe3033c70e55b171c",
    "signer": "0x3E54F0FC215b6D2d2f9B7cF274525405585358ca",
    "userId": "75985245"
  }
}