{
   "epochs": [ {
      "calculation_time": "13366248223550967",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366913135180190",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "EA602F92D969B74A6E6E2C759D8E3BE5C84C960FCEB8298BE1F9271AE12DDB5B",
   "next_scheduled_calculation_time": "13367517935180440"
}
