{
  "manageEntity": {
    "action": "Create",
    "entityId": "901965541",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":901965541,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Experimental\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Other\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"un : Crayon Nébuleux - Chapitre 8\",\"duration\":267,\"audio_upload_id\":\"f3a61f5f949861fdea20c504ddd20087\",\"track_cid\":\"baeaaaiqsedlm74zhtqyezkd3ckryiztqyxb4apmzofcm2cfqmmtz67ibhafo2\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsed6jbjxxld4hmqx2k6u4f2qaotow3rutidkdu7zitr3my36v5il7o\",\"orig_filename\":\"un : Crayon Nébuleux - Chapitre 8.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":105,\"is_custom_bpm\":false,\"musical_key\":\"B flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":90310848,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecwntgdfztitx6tzrcs5re4nhmfsleppfp26xxbautpiwygawglto\"}}",
    "nonce": "0xd12b09a9ee929cb23351bc403456b80f225cfd15057a1bff87559cc7365d1cfc",
    "signature": "0x8bafefb7fe01a10e175724e65600c1ccbeb33e8e9810ba0614c68945019b259a67b5b646ce29be1589ae989af2442865d784a02788c5d91c367f8dc9b7d9cf121b",
    "signer": "0x90dE7cbfC5eF4c0bE8Ecf8814596c0a4f465E9aA",
    "userId": "90310848"
  }
}