{
   "epochs": [ {
      "calculation_time": "13371024222905384",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13379158424737257",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "A388C6936295A589D7F5229F9FA944F8AC3E0D173964ADD3DE4722DEEDEE217C",
   "next_scheduled_calculation_time": "13379763224737397"
}
