{
  "manageEntity": {
    "action": "Create",
    "entityId": "1880794222",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1880794222,\"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\":\"Sentimental\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"道行天替_歡送\",\"duration\":174,\"audio_upload_id\":\"591e123897564cc70b8ca3199c1c6396\",\"track_cid\":\"baeaaaiqsebbhtfoefiqdc4nv675zv2hxznimnhwm2zktszdfqm775phl2yl24\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsednjvrorcqb3mpq23q6gqrescqgafbf5ww4qtyrq7ez4tlmjdmi7s\",\"orig_filename\":\"道行天替_歡送.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\":\"G 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\":\"baeaaaiqseddjy2zia3ybmspdoac2cioa6oou6cbrzw2z3vgmklb47it4p6ctq\"}}",
    "nonce": "0xf9b33dd26dd642ddc71191529517b63670bd2a4224b0786978d03a45bbf0ba26",
    "signature": "0x693bef0f44d5e4a241a872cc2be3d271fa227aed98037a4d3fd91a4dc6ac53dd19f6250178e517e067c9faf4f6c805eeae5a24e0fb90dce89a0927ab3f098c9a1c",
    "signer": "0xA169dE4d8c253bf06970019E3835E60a57cBeb25",
    "userId": "947140631"
  }
}