{
  "manageEntity": {
    "action": "Create",
    "entityId": "1734004015",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1734004015,\"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 20\",\"duration\":481,\"audio_upload_id\":\"ed9895c4720020df35a818fdae8280ec\",\"track_cid\":\"baeaaaiqseb6g6y3uimwktvampscvd57cfu65chldwjjxt5ebm7uozl3dkgkx4\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedb3oxqe5oiofnt4a3zu322goj3fqojrto5mbknyvli5rprxhusnc\",\"orig_filename\":\"Chapitre 20.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":122,\"is_custom_bpm\":false,\"musical_key\":\"G 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": "0x6463be9c1f928b07519a51663ca1323ddbe0fd60f096cb2b9dec38a18693ec4f",
    "signature": "0xec67a352bbcdfe7757101b8f2c5b9d283f61b46f56147912f9b1521f4d6a1cf467b829e41c1f0c9feed7bb9cd62fb9ef49dc7730508fbf641169ff01a82280991c",
    "signer": "0x7B8ceC5EB9388Ac1045B7a1Ce60AE9235d6C6309",
    "userId": "743587390"
  }
}