{
  "manageEntity": {
    "action": "Create",
    "entityId": "1643207563",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1643207563,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"R\u0026B/Soul\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Tender\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"食腐者\",\"duration\":206,\"audio_upload_id\":\"7358ee2b1a79f80156e86c44de799c9b\",\"track_cid\":\"baeaaaiqsecebuk2vfqynajxvvnmtebuqsn5wrk5eosnd6gjnyvmt42sdz7ie2\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsea55cc4w4zwipnmwzzj4bqvfpytzut4oa7a42sgi3qgkwd5wrai2s\",\"orig_filename\":\"食腐者.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":117,\"is_custom_bpm\":false,\"musical_key\":\"B flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":947140631,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsectkhypw7ezlz2ewcnz5evl6hlpq6lcurpusbli6hxzuhaxavsz6u\"}}",
    "nonce": "0x0727d632aa63d28c16d0b51e20fea293f3cbcb0e3b25aa0d27f72a7725826205",
    "signature": "0x762ff849be7412abacec7c1116c6ace1d49f289f59981b49f4caf14fd1cb68627e239d9cb1314f036665e998a2bb79039b51ad45c1b3de2b1fd80a4bd4307b1c1b",
    "signer": "0xA169dE4d8c253bf06970019E3835E60a57cBeb25",
    "userId": "947140631"
  }
}