{
  "manageEntity": {
    "action": "Update",
    "entityId": "504519602",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":false,\"playlist_image_sizes_multihash\":\"baeaaaiqseatoi7pdij7tfnjbrg5ylrlbp6rz57inbyr62vyrp6fcz6lmrs2ki\",\"release_date\":\"2026-06-16T17:18:51.000Z\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[{\"timestamp\":0,\"metadata_timestamp\":1781630441,\"track_id\":203754864},{\"timestamp\":0,\"metadata_timestamp\":1781630447,\"track_id\":574262830},{\"timestamp\":0,\"metadata_timestamp\":1781630461,\"track_id\":1230917099},{\"timestamp\":0,\"metadata_timestamp\":1781630471,\"track_id\":146073894},{\"timestamp\":0,\"metadata_timestamp\":1781630485,\"track_id\":1287455792}]}}",
    "nonce": "0xc420ca380cad68014308dae70ab429cde69770a286a3e0b85975e4b86fe1f381",
    "signature": "0x875f4499fa710010bc19aa43abef87bc451f429b945dd99b5ce1b4a06fcb939045cd8df3891b2abcfda7699949c12f86d020cc0e13c30a5b022d864e55587d591b",
    "signer": "0x2fff7071097d912DEaB17B33e448D7280cEe0723",
    "userId": "655790469"
  }
}