{
   "epochs": [ {
      "calculation_time": "13366468206182540",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367131697084774",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "866308317E3FC2A34D05B74F4D9FB674628D961DE7DD95BF36FCFB907857B890",
   "next_scheduled_calculation_time": "13367736497085144"
}
