{
  "manageEntity": {
    "action": "Create",
    "entityId": "2043518222",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":2043518222,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"soulful\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"rec001\",\"duration\":928,\"audio_upload_id\":\"409099f04506d28a5b8b46730fb26bb8\",\"track_cid\":\"baeaaaiqsedwhb53l4ryush57v4khgrlvwptjwo4ogof54fwevqgthduuwq3uy\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseazpahi4fcb77bfwpct7k6g5jispiasyarxg4p5d5czwovktlhdma\",\"orig_filename\":\"rec001.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":103,\"is_custom_bpm\":false,\"musical_key\":\"G flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":345461669,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecp2it5mdo7iha2pst3snrm7jfwvxmfsk425jvwm5tbrnitpn77na\"}}",
    "nonce": "0x4b3afa9b28abf033ed2c22420807729c1fcce80179f350d2582fb4df68155e01",
    "signature": "0xcbfbdeabe9e791b99f9e8571c9902725cd4305788ae23ea2284537657398f4d723fd986f22a72fb97815658ad568442bf51dc8cfb29c138e992a19f7ce121db31c",
    "signer": "0xb5c767030e9D6cB1813Bd99342D3ab8eF81cE393",
    "userId": "345461669"
  }
}