{
   "epochs": [ {
      "calculation_time": "13366614175847240",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367274182648439",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "660700DB159F0A8CD1C494D0262D93F09808261384A426A28BB9FAFB525B59A7",
   "next_scheduled_calculation_time": "13367878982648980"
}
