{
   "epochs": [ {
      "calculation_time": "13366791215580209",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367464988975858",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "E9BE78A260C42FFC23E02A91D10C367EC7AA375F507DA74443A1887BD0CC9B4F",
   "next_scheduled_calculation_time": "13368069788976002"
}
