{
  "manageEntity": {
    "action": "Create",
    "entityId": "1687009413",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1687009413,\"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 10\",\"duration\":501,\"audio_upload_id\":\"b3d1f9a9c31ea6b12c957bdd0ac65390\",\"track_cid\":\"baeaaaiqsedq3rhygqolginz2t5sv37ypzptgtptbkxiqzveqtwcirgdlxdl3c\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseaqrlnhfkqytdhw5t67hvolpatpgw2aumjq4diakqkzpelnxihw2y\",\"orig_filename\":\"Chapitre 10.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":118,\"is_custom_bpm\":false,\"musical_key\":\"A 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": "0xa0da8ab4bfe71acfe40e6cfec9505eb0ec943d5b0d7ee885baa9149e11cce9e3",
    "signature": "0x761575a7105886f5b862a95f09a60a7af25724490c24f1b990d3f3e9ce93ed6b68ee0baf15588629a2867c1d1d6231207b77393bf5bd3b0f6e751b39649b7eb51b",
    "signer": "0x7B8ceC5EB9388Ac1045B7a1Ce60AE9235d6C6309",
    "userId": "743587390"
  }
}