{
  "manageEntity": {
    "action": "Create",
    "entityId": "384921728",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":384921728,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Electronic\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Trance En La Frontera\",\"duration\":271,\"audio_upload_id\":\"1c6c3b9b723da2aaf2facf3e5d370587\",\"track_cid\":\"baeaaaiqseaqgqn2ggynay7zhcdhol7qrz4wjhiteueepmfwtw7g3w2mt7h2ru\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebspr67l7sw3cxwd3r32p4vki5bcjqd6tmalyk5ogqnsyjxjmp7ds\",\"orig_filename\":\"Trance En La Frontera.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":118,\"is_custom_bpm\":false,\"musical_key\":\"A minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":731078861,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseck5zjjis7uh3wgmfp4pbbyzer4g2kz56uyfr76ld7ybwhjf3fiyc\"}}",
    "nonce": "0xd1fd54174d756ca1a9f9a023177d20864eb1010523cd760c919bccc7a0631488",
    "signature": "0xb8adbaf7c48f857de592485f24423e13ff804799c096cbda2a6a2ee4bcaa4e08532784ab467f80e687cd4cf2962cae301e3a222d8897b19a5548a24253bb14931b",
    "signer": "0x715dcdD7cD180C5B63c84bE69157E9c4318EFD1a",
    "userId": "731078861"
  }
}