{
  "manageEntity": {
    "action": "Update",
    "entityId": "492921638",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":492921638,\"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\":\"2026-10-11T16:57:39.000Z\",\"title\":\"人面摩天楼 - トマソンガール \",\"duration\":37,\"audio_upload_id\":\"8be288e69bc912ac0de299f1be32bf1a\",\"track_cid\":\"baeaaaiqsebinyjuvo5qljxo37iuhspsslsmimt2cdctrkvgkio2pdlq6us5lw\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsed4lhalcmkdh7wqt77sh643bmavtuqhgvcnb27533qdwmj4mfyema\",\"orig_filename\":\"トマソンガール.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":106,\"is_custom_bpm\":false,\"musical_key\":\"B minor\",\"is_custom_musical_key\":true,\"comments_disabled\":false,\"is_scheduled_release\":false}}",
    "nonce": "0x29bf407bff5abf1b747fdd7b0529c291bf3eb07695a1319868604f4cd43ed6d3",
    "signature": "0xd00f286045ec6f2d9bd41205fa22bc9ff57dc0a198e9b3ff2b88c91a9a07ec9528e4c323e539cd803c3fed04010338c80ff2021043e698cb37e66834e09786301c",
    "signer": "0x654f1b2DCF5eE0f42af2618ba269C1C8f8327BCA",
    "userId": "392916338"
  }
}