{
  "manageEntity": {
    "action": "Create",
    "entityId": "383367867",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":383367867,\"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,\"mood\":\"Fiery\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"idm,electro,bass,techno,experimental,drum,synth,rap,hiphop,electronic\",\"title\":\"Magic mic\",\"duration\":192,\"audio_upload_id\":\"f8c73cba5cdab5b7aa762a55dfccf4a5\",\"track_cid\":\"baeaaaiqsedj4ida6hd6rgakdkthcwuekhsrogg3yl5cxaqcbl7rifaufaizvy\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsea7ejy5wf5rqw3fqqv2psinwmtgfynkpt6ahlwhplby7x55zqtbrs\",\"orig_filename\":\"magic mic 10 fractal88+ song7 song18.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":90,\"is_custom_bpm\":false,\"musical_key\":\"D flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":6301,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseacvps7qhneb4efhfkwk26eoqytnoltekmphoow53viqepyilg5ca\"}}",
    "nonce": "0xc7d311114abd570cc7c0846c91b6f49314ba66e073e2f390a3344c56f4747c66",
    "signature": "0xc72ce6dd9e03285179b50d528328937383097767b6749ea72d3619811211f8e77196fa6d4ca1c50cd63ac97382460be0fabd78bf330bc2831945b2fd5062b39f1b",
    "signer": "0x07f377Ff39C99f3d1a6D6fc76598a8daC90caB17",
    "userId": "6301"
  }
}