{
  "manageEntity": {
    "action": "Update",
    "entityId": "1749766843",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1749766843,\"owner_id\":201451638,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":false},\"genre\":\"Soundtrack\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"mood\":\"Other\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"Breeze in the air\",\"duration\":97,\"audio_upload_id\":\"01KDX1N17PQD7R85C7HV7078D0\",\"track_cid\":\"baeaaaiqseaccgyne6eetruzr7yrq64lh55uyehdzq7updk3scaqmlx6tjuo7q\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecjx7k4vbulranx7ecalos23a65o7nffasrnolms3hp5bbs5pg6hm\",\"orig_filename\":\"mus_forest.ogg\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":89,\"is_custom_bpm\":false,\"musical_key\":\"D minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false}}",
    "nonce": "0x46b6fcf9f4513f725f16a1a5ed7a7a983983ac80c925965c62beee67a412d89e",
    "signature": "0x844305e594d326b5e0c5bf31edbc32beb53b6c188fda35ab222023066b46c4054ef19cadd25c81c753cb8ba1b290a0dc463c94c95f2c5a25ff5494a40886d9501b",
    "signer": "0xE8F5265Fe3CDe52D4F0f15c3940B99F8e2d12cCe",
    "userId": "201451638"
  }
}