{
  "manageEntity": {
    "action": "Create",
    "entityId": "788922094",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":788922094,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Audiobooks\",\"isrc\":null,\"is_unlisted\":true,\"iswc\":null,\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"Chapitre 43\",\"duration\":885,\"audio_upload_id\":\"e8a48aade5b3ca509cf0d26ea4613403\",\"track_cid\":\"baeaaaiqseda7ff2ckeatmx24hiqdy7nzkqa66qiy7iqjljmmgdp323nbpyudw\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsead6xzqfiomt6q7uw5wqw5yoct4vp4f5yozh5goozzug6pu2fbege\",\"orig_filename\":\"Chapitre 43.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":102,\"is_custom_bpm\":false,\"musical_key\":\"B minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":743587390,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsebyklhscvopiz2r5qbl6jkj3tppnbuudlybjk4h52lods6tzfjpps\"}}",
    "nonce": "0x88b86ee06d0f596267cbbbf662f7f70c942fb29d358879091bcfd8ef98f46119",
    "signature": "0x9c9b142a2fc04188a787f1681f663a70e23d475aed8ae65dbd9372e427a106467e2d9b6cd5048b73c97d49c1729d99b7c54322c25f2d5ecac6d928140982cc561c",
    "signer": "0x7B8ceC5EB9388Ac1045B7a1Ce60AE9235d6C6309",
    "userId": "743587390"
  }
}