{
  "manageEntity": {
    "action": "Update",
    "entityId": "520037825",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"JOAN\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqseco7qsdwjrpnuknylvcyfcfg4tilsgirnkoqe7mdl6wcvt53prkxm\",\"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\":1774486440,\"metadata_timestamp\":1774486440,\"track_id\":1822619116},{\"timestamp\":0,\"metadata_timestamp\":1774532611,\"track_id\":862805699},{\"timestamp\":0,\"metadata_timestamp\":1774532615,\"track_id\":1188898104}]}}",
    "nonce": "0x9d39b926a3bd4d8565084d58f38c4990f924550ac2214a7d45087e9dcb54c8a4",
    "signature": "0x6ec8e68ceea51d3da9bd742c1243d5198c79531664450bed91a6bb5b0e344983339025a0da8104da61294402b502de8fa5c6ad9d7d6ba463d7356b2247a25c771b",
    "signer": "0x506C9A5705a37D14362821675ac64F9B591aF1F0",
    "userId": "872348098"
  }
}