{
  "manageEntity": {
    "action": "Create",
    "entityId": "674178286",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":674178286,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Rock\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"mood\":\"Cool\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"release_date\":\"2026-05-05T15:52:32.000Z\",\"tags\":\"ndbrut,pseudooriginal,rock,alternativerock,modernrock,ethereal\",\"title\":\"6. Serotonin Sadness\",\"duration\":191,\"audio_upload_id\":\"556563f5ea58396644c89fb727117a7f\",\"track_cid\":\"baeaaaiqsedukximg6hhdn5vx2uph6ilmxwdqe4h5irmnalvlzufk7jcujfzdu\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedilc2kjkirtlyj4acqm2bghboika6oi6wwx5bkc2qso65mqwdblo\",\"orig_filename\":\"6. Serotonin Sadness.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":137,\"is_custom_bpm\":false,\"musical_key\":\"B flat major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":133478614,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecwmoqs6i237obpqt37njtn5ry7iyifcomqknrjgxqypp7jaaipyk\"}}",
    "nonce": "0x6974d8c51e6c0289c2821fac8eca1d18a8edfe6092e14b2649e592aed5e6e2ba",
    "signature": "0x595c186b3dad7bb259ebe3a3351633a1c3d47128551356d105346791da5aeb4b68f052720994bbf604bf1f34514a788c669bd2464c40d7ccad96d7b031d5da7c1b",
    "signer": "0xfb70543D59F8614d11B4D2922bdb1b80Eec0a0dc",
    "userId": "133478614"
  }
}