{
   "epochs": [ {
      "calculation_time": "13366608738898231",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367268432979853",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "1BB20910C6045614D7CD33A88B19DD78AEB876FB2364A65B09F9B093C55D9FFD",
   "next_scheduled_calculation_time": "13367873232980232"
}
