{
  "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},{\"timestamp\":0,\"metadata_timestamp\":1774486431,\"track_id\":1245605452},{\"timestamp\":0,\"metadata_timestamp\":1774486435,\"track_id\":1761692980}]}}",
    "nonce": "0x07c79cf294cc784e24a50514aa53010d8b04103dedd63f0ee95d8facdf0dc0a7",
    "signature": "0xb96e7d75fa8e03d632c1be0e55efb07561b8ee8282df483499c5d3b9ff79ee28518decaefd209ccfd1857a451388a471c1792f09509cf68148f05c80f380a4a61b",
    "signer": "0x506C9A5705a37D14362821675ac64F9B591aF1F0",
    "userId": "872348098"
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}