{
  "manageEntity": {
    "action": "Create",
    "entityId": "1479275945",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1479275945,\"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,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"CM_106_City Among the Stars (群星之城 La Città tra le Stelle)\",\"duration\":418,\"audio_upload_id\":\"050b8013ce1d07541b1cd693dbf4148e\",\"track_cid\":\"baeaaaiqseb5mqnf2v2qrnzx2uz243g25ohlpivckxloztax3pbyxac4534eye\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsea2p7e6mlmp7je5rdk233f7vwhq2gq6cm4v57l72gdiaiexf5wuss\",\"orig_filename\":\"CM_106_City Among the Stars (群星之城 La Città tra le Stelle).WAV\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":122,\"is_custom_bpm\":false,\"musical_key\":\"D minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":610888861,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseaprf6s5x7lcyy46hk7xxwhocyxuneae7lm4c7seicq7qxcsnt3pw\"}}",
    "nonce": "0x96ec75d5bbc7b08ed53ada0a02fa0f3fc46b7d1e9fd1f3dc07fa737961e9a102",
    "signature": "0xbf905cafe87f23ba0d285f5c8ed1a3effc87d2c70e5d30b24a4d30a734c24c8a030c0bfb561c91b09ad1f4f2b4fdbc8df5e4a20886f5b270fcf2b187514577e71b",
    "signer": "0xf5BfE006B204417a4a7D6B64C2336EEE309eCc17",
    "userId": "610888861"
  }
}