{
  "manageEntity": {
    "action": "Update",
    "entityId": "1620424573",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqsebfl7y4yke3t7rh5wci5tyxorqsttp2tbfzj4buawdpriat74i7ns\",\"release_date\":\"2026-06-10T18:26:53.000Z\",\"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\":1781116026,\"track_id\":967707361},{\"timestamp\":0,\"metadata_timestamp\":1781116037,\"track_id\":1750518077}]}}",
    "nonce": "0xcad4a08c69ad6238dfddc3190ae2aaeb93485787752740ccd6c3e4bdc0eaf543",
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    "signer": "0x26cEea2095d3b534736d1935FEE8d0d528846b90",
    "userId": "31398949"
  }
}