{
  "manageEntity": {
    "action": "Create",
    "entityId": "229391850",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":229391850,\"description\":\"Written around the contradiction of human life—clear-minded realism clashing with absurd fate, wasted health for gain, estranged love and lingering youthful vows. Poetic, atmospheric vocals carry sentimental\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Pop\",\"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\":\"frenchpop,frenchballad,chanson\",\"title\":\"Lucid, Absurd （FR）\",\"duration\":279,\"audio_upload_id\":\"01f7eb5b417c298d4e7371d148ed78ec\",\"track_cid\":\"baeaaaiqseass4d4suwcvuwiypw42qr7o2yj7zxc5oxoqj5ptq6altvmoe6w6a\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseccvyeajhevdmg7jj5uppvkmnsh5mcbtz2sijar7jsnvxru4eic5c\",\"orig_filename\":\"Lucid, Absurd （FR）.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":113,\"is_custom_bpm\":false,\"musical_key\":\"E flat major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":74596186,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsea5o2anhsjwg7thc7bn2cysoaq74ugdwb7onu43pfyxgasn6hzbxs\"}}",
    "nonce": "0xaf324797848c9d73cea20bb17bf0ebdf15ec3d6f111840ecd3af67fe7f0e2d6a",
    "signature": "0xe8bc1a19e4c99dccb5cdf799e5c1e2e353f2bffaf6e72e0b4c162ada28c320366e392338a3d1eb440e0099e33345eec48b8ebf67b6c2207f66f10d83bbdfde511b",
    "signer": "0x4B03B9450DcE329d16f317309777a1ddDF894705",
    "userId": "74596186"
  }
}