{
  "manageEntity": {
    "action": "Create",
    "entityId": "1639884038",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1639884038,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Soundtrack\",\"isrc\":null,\"is_unlisted\":true,\"iswc\":null,\"license\":null,\"mood\":\"Peaceful\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"Studio_MTGSign#02\",\"duration\":14,\"audio_upload_id\":\"3e1f639fcd5ba67a503ae002763ef929\",\"track_cid\":\"baeaaaiqseamkum45gjapkprmgyf4fqiiesfyrvxmdzedqzfjeq746vvbr3ihw\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecc4gwgnf6cemnkimg3kjjom25gpon2lyia5ui4k37zmrdyys4ots\",\"orig_filename\":\"Studio_MTGSign#02.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":142,\"is_custom_bpm\":false,\"musical_key\":\"A major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":549983695,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsebze3th2pwzvukm32hq4isqjjus7xyzrl5kgcphnojncczmqlmgc2\"}}",
    "nonce": "0x562373e577f123a30b6522059bbdd8bba9781cff19202fd9194d6739803d2681",
    "signature": "0x79637820a2787f9047896876dd58340b88837c409f631f07894d613d0ce1cddc4e994ee632c1fced0ef9955bd40a299d3958a25d8cb0541fe3ff14db0647d69b1b",
    "signer": "0x5877F7e1aB261CEa57f1734519117Ed49d50c8c3",
    "userId": "549983695"
  }
}