{
  "manageEntity": {
    "action": "Update",
    "entityId": "1223790104",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1223790104,\"owner_id\":410578161,\"description\":\"내 마음 (nae maeum) - My Heart\\nvoice by Yumi (ユミ)\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":false},\"genre\":\"Pop\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Romantic\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"release_date\":\"2026-02-28T16:02:17.000Z\",\"tags\":\"kpop,love\",\"title\":\"내 마음 - My Heart\",\"duration\":208,\"audio_upload_id\":\"ce84d0fac6803643a6c0d3ba1466e170\",\"track_cid\":\"baeaaaiqsedgcaaynqpxtpkkbvoyyhana5cso3lfljooych7oef2uk75buyluq\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsed5tydx6dbgliowmudsc3q7zlpeytno3ytqtnlnthck337p2tuw4s\",\"orig_filename\":\"내 마음 (nae maeum) - My Heart.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":147,\"is_custom_bpm\":false,\"musical_key\":\"B flat\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false}}",
    "nonce": "0x1eeff0164b8c343d49d23b54af1e05a5facd5a668e22dc680d2a5f9ad5bbe75d",
    "signature": "0x9878d210a23a3f5f0a7d8bb45c65ad8cadae1606e013ff7b133348c4b532153561b399cb333b35988042395c2cded0eb68c7b3d7432a348d548c4edc6b3585931c",
    "signer": "0xd56d9444ff70A29c3F9c056414860a202d9C2fb2",
    "userId": "410578161"
  }
}