{
   "epochs": [ {
      "calculation_time": "13366264254243411",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366928559402240",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "C8EDA9128DBCCBC1581328BFB00B47A46A2C1AC5D2DDB8E05520F3A87D44911F",
   "next_scheduled_calculation_time": "13367533359402499"
}
