{
   "epochs": [ {
      "calculation_time": "13370601520974674",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13378020145348252",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "E9573B3DE64F6257D66A536C38751F11F87AAEB7A7AA58BB3CB6DB10C7246F23",
   "next_scheduled_calculation_time": "13378624945348305"
}
