{
  "manageEntity": {
    "action": "Create",
    "entityId": "840862615",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":840862615,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Dubstep\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"mood\":\"Sophisticated\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"release_date\":\"2026-05-23T03:34:57.000Z\",\"tags\":\"dubstep,electronic,wintershards2\",\"title\":\"Kallyn - Sandbox (ft. Yoku)\",\"duration\":241,\"audio_upload_id\":\"7a6eed8196ff7d60febf6dd918347b66\",\"track_cid\":\"baeaaaiqsebvkfmgwrhkqo6rkh7cw6odywszeoi2aruksqpnbxhe3hbphreia4\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseb35rnt5nhorjmb75ylh7uekieyc5frghbew4p5fa2cz3ppbf4una\",\"orig_filename\":\"Kallyn - Sandbox (ft. Yoku).wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":151,\"is_custom_bpm\":false,\"musical_key\":\"D flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":77945,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedvuit5monoelvwhevp4u2xcfrlwxxrroyztvhw2wryr4l4d3muq2\"}}",
    "nonce": "0x64189792e35a1cc0b5a4d014faa77c4a0e406932a6831386c40f76e8f417ad75",
    "signature": "0xee14805e952013497a93f3c2cd0b5767445c06e422c0292da6ec7308663911455fbb3a8e7afa69794f0e188584aab7237f0a71ba71309631e76b9be8c83b7f021c",
    "signer": "0x9Ed11234239Fa9f5F3decCf41Cb8c70955BCa0E6",
    "userId": "77945"
  }
}