{
  "manageEntity": {
    "action": "Create",
    "entityId": "1256661035",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1256661035,\"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 32\",\"duration\":3,\"audio_upload_id\":\"b5332d70222a5ff20ffcd2fd70ba7259\",\"track_cid\":\"baeaaaiqsebein6neejea5lu54hf35p4veq4sauhgqweukrqqf2pkjbumczbyy\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebzmp2qw2m4b3nufdbrkihnerfhl7bzixqre4isp76cv6tafyaz56\",\"orig_filename\":\"Chapitre 32.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":125,\"is_custom_bpm\":false,\"musical_key\":\"C major\",\"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": "0x97e5d0a963d942359601b76047f9747fcea68d85c10ab84243fb6b0191a13510",
    "signature": "0x527944f4119e9910991fd34124323dcc74681173da37b960483d4b2b7a7172af088446c94edcd82a70b3f4843ee361bcf624329c25a396ea7f7da3e30dd4f5101c",
    "signer": "0x7B8ceC5EB9388Ac1045B7a1Ce60AE9235d6C6309",
    "userId": "743587390"
  }
}