{
   "epochs": [ {
      "calculation_time": "13370168461776101",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13375211778399945",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "D9FFC820BC7B229975D8AF2FA262E4A947A2E51CC4DB8882898ADCA21DA18795",
   "next_scheduled_calculation_time": "13375816578400203"
}
