{
   "epochs": [ {
      "calculation_time": "13366365357632188",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367030710647065",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "5933AF5A7D0F67C28DDF9E6B804500876740ED8403B0FD26D4DCAFDE0C85502B",
   "next_scheduled_calculation_time": "13367635510647276"
}
