{
   "epochs": [ {
      "calculation_time": "13370480876690950",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13376862472242689",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "238045EC075C7ADC1236BA63063A9BC15968749CB0B29F7093956F33B422BF3E",
   "next_scheduled_calculation_time": "13377467272242780"
}
