{
  "manageEntity": {
    "action": "Create",
    "entityId": "1931272306",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1931272306,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Pop\",\"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,\"release_date\":\"2026-08-27T15:00:00.000Z\",\"tags\":\"kogka,jpop\",\"title\":\"スピリチュアルハイ(Spiritual High)\",\"duration\":92,\"audio_upload_id\":\"64af40831a04ca5d4ca7a7f6ab7f9982\",\"track_cid\":\"baeaaaiqsecsvx4pjsuexjgaozlvfj5m6nlrnscwe3kolph4abawcmxc473thk\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseavmpjhvh33vapwocxdi6q4rqfcq45nfcqwd6gretizevnilprzcc\",\"orig_filename\":\"K0357_スピリチュアルハイ_Mixdown.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":107,\"is_custom_bpm\":false,\"musical_key\":\"D flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":true,\"owner_id\":851914601,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecgxv5yvsvnt2zh5ejhola7ujbuqi7tusdk7pe3znq3ipuyo3lely\"}}",
    "nonce": "0x37582c8c0350524c371dc0db79f09e65e0baa344a3cdff824daec8a28ef94923",
    "signature": "0x38c2918db74d996fb065ae7a6855eea5140fee23968003adaf4fa5ae1e651285501b9c1acd354a9e300e130cc1e7f49c0bfdf6ad9cd85e2e3260d461101751cf1c",
    "signer": "0x9a95E87e27E17D9A64b59102A5D563d705e460e6",
    "userId": "851914601"
  }
}