{
   "epochs": [ {
      "calculation_time": "13366741243498510",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367412956159007",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "5B40C0FC0FF0EEE6B9F5703AFF085F1CFDE40F00FEB91F6B4AF6BE1BCB0ABD61",
   "next_scheduled_calculation_time": "13368017756159561"
}
