{
  "manageEntity": {
    "action": "Create",
    "entityId": "630724190",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":630724190,\"description\":\"Giacomo Leopardi - in musica contemporanea\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Hip-Hop/Rap\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Sentimental\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"L'infinito\",\"duration\":112,\"audio_upload_id\":\"949f361f050133ef4e924da0d5e70215\",\"track_cid\":\"baeaaaiqsecmhkinkskt4rrgriywmodrs5l3zffmk7cnflzewcq6w4rauwebig\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseaxrw2uzpa7jmceq6wskwr7d6vn2d5xm665zhip4mo4tqvjqnnrbi\",\"orig_filename\":\"L'infinito.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":92,\"is_custom_bpm\":false,\"musical_key\":\"D minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":227068227,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsededu3gfeb4w33naaubnmaqqshdwuoea4aje5pbaa2osdghg4rxpy\"}}",
    "nonce": "0x87822aecd22823af5aa17adb0a4943c1828eed252210af15027f073404214bad",
    "signature": "0x1d7f547e3a69e20519ae73401e3f024c4481056d419e01c411b824d1339b2222498be4fddb16cd0cb0f270163933a755612cbce2331a3149f7e931025aa003971b",
    "signer": "0x4E802f7193313C8D55a39077f1DD13479712F61b",
    "userId": "227068227"
  }
}