{
   "epochs": [ {
      "calculation_time": "13366514579902774",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367177501558313",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "CA6AB9F9DB8646BE3A88B52498E28A8422BC73255D90FDB8235986EB709EEB1B",
   "next_scheduled_calculation_time": "13367782301558470"
}
