{
  "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": "0xde1e309385e494385a989c9acdae70bf344713fc3529154b9cd9d3c57181010c",
    "signature": "0xd6c10949d64fc6108c0d683f889ebf8ec7bf86c37e108fba8e86684c93a0534520724039c4208d50ab0ac9145b847e60e393871aebb7844ab535a239e1035f171b",
    "signer": "0x654f1b2DCF5eE0f42af2618ba269C1C8f8327BCA",
    "userId": "392916338"
  }
}