{
   "epochs": [ {
      "calculation_time": "13421447328039488",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13423154550187749",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "3152FCE6CD0A0C003F7A0C40B1F4F0B377E27109967066E610A37F1895CA4C7C",
   "next_scheduled_calculation_time": "13423759350187767"
}