{
  "manageEntity": {
    "action": "Update",
    "entityId": "1575509465",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1575509465,\"owner_id\":392916338,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":false},\"genre\":\"Pop\",\"isrc\":null,\"is_unlisted\":true,\"iswc\":null,\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"collaborators\":[],\"is_download_gated\":false,\"download_conditions\":null,\"release_date\":\"2026-10-11T19:07:50.000Z\",\"title\":\"前園純ノ介 - 痛みも孤独も愛してたなら\",\"duration\":47,\"audio_upload_id\":\"bb3917d5fb6977adf8f3477035013cff\",\"track_cid\":\"baeaaaiqsedyd7ayzn6wflo7lntqs27p6zzbf3munekpiro3pozwkap66k7msc\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecp6vdxqec6nrv77kphvsa3jshgo36yakhl4a3uzyt2j7sp4vsmvw\",\"orig_filename\":\"痛みも孤独も.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":97,\"is_custom_bpm\":false,\"musical_key\":\"E minor\",\"is_custom_musical_key\":true,\"comments_disabled\":false,\"is_scheduled_release\":false}}",
    "nonce": "0xdc13ccb4cb9c3715d46af6e9842f1256a5b538536c4d8c747099cb5df2e95970",
    "signature": "0x8cd47b555d52e8582e1cab5850caef83ee542eef1fa561e33061040b79c4e11460bac247e76f45ca0de619878e623391ef3fd26293eaa0ad431e8ac6364ae73b1c",
    "signer": "0x654f1b2DCF5eE0f42af2618ba269C1C8f8327BCA",
    "userId": "392916338"
  }
}