{
   "epochs": [ {
      "calculation_time": "13366596124805170",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367255735516336",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "C7231EB2CA7DF0EF642D085928DF4EE685DE332ED79368390497A8E3F8232D4E",
   "next_scheduled_calculation_time": "13367860535516450"
}
