{
  "manageEntity": {
    "action": "Create",
    "entityId": "1285523307",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1285523307,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Metal\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"mood\":\"Defiant\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"What’s left\",\"duration\":216,\"audio_upload_id\":\"8b4e99ea4fd664776522c718e34e43f5\",\"track_cid\":\"baeaaaiqsebduon2zvuf2ji7njuguaaum7ezzdlaukvkdmlaotn5htf62q6rrm\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebd6ylmytxajwfx54vda2plglmgzpwxln5lgvjdb57fy6bklmnxf6\",\"orig_filename\":\"What’s left.mp3\",\"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 minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":764901066,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecdqksqs7irtpxagz3wl433dyqj7h2xfog5g5du6e6hgaaa2g3s2s\"}}",
    "nonce": "0xc1e923c5b56e0310498f3323f77fb85ab3d679879488ebe8f382965c4fff9b81",
    "signature": "0xe9bb730c7c31f940e03606332d171d8ad4cdfafb61293f32e7f777ca45795fff502d2454154296a408ed034924e1382d5efe7fcdaeb66e9e049182f68c552b1c1c",
    "signer": "0xA603445f64E7BFAcc333e3B7f99a6B2cf80d855e",
    "userId": "764901066"
  }
}