{
   "epochs": [ {
      "calculation_time": "13366431438683296",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367095128783097",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "89B3BD221F897B95E38F5D7D9C867F58F4FD0DABD6F9207C8D783937B112FF38",
   "next_scheduled_calculation_time": "13367699928784264"
}
