{
  "manageEntity": {
    "action": "Update",
    "entityId": "520037825",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"JOAN\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqseb3ssuo4bclwo4oy5xefuuvfcgeeulu5bxxg4trkgqodoatufkllg\",\"release_date\":\"2026-03-26T00:53:13.000Z\",\"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\":1774486423,\"track_id\":522829508}]}}",
    "nonce": "0xb48fb5a3491dda8da5b45a179da349c7ae01ff3228c337d82b6dcae7bba3ecc7",
    "signature": "0x3eaee23966b150dc2fa5752e99ad11c54669d072fe14f85eaea85908d7ee70b9573c9794f573090d31bfa7dcf5571cb41e404076ec5de37532b4ca5f8768f2ac1c",
    "signer": "0x506C9A5705a37D14362821675ac64F9B591aF1F0",
    "userId": "872348098"
  }
}