{
   "epochs": [ {
      "calculation_time": "13366626813160200",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367286972689616",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "7FCD66EDAF689DB8CBD8B31E38AD83EE4868CEBBCC7EE61F498D545B13DA6C7F",
   "next_scheduled_calculation_time": "13367891772689840"
}
