{
  "manageEntity": {
    "action": "Update",
    "entityId": "871037550",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"playlist_image_sizes_multihash\":\"baeaaaiqsebujuuvfchu67f44thpwjwnaq3c4t3uqwvl5tpwavukrekilac2ae\",\"release_date\":\"2026-04-28T16:51:15.000Z\",\"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\":1777395089,\"track_id\":1755131005},{\"timestamp\":0,\"metadata_timestamp\":1777395089,\"track_id\":1480377482}]}}",
    "nonce": "0x5a8e9f4247fcedbda73c79c88fa57400a7be7b7dea4e548d24b3516234606aa9",
    "signature": "0x70a42b5d242b3ec324142ced715bd889002e87fe82d31f4a9946005208bcf9457066ccb147129e98127f7319d6f1239925b12684713fb4d8c432559799abec3a1c",
    "signer": "0x705C3Be1F27A9694A390A0a58287440a6b43349E",
    "userId": "193978537"
  }
}