{
   "epochs": [ {
      "calculation_time": "13366288142183810",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366952225753336",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "01923EE1CDF3A2121F00522A71311D0C4258F66BB650A804F7FDBFF00D990509",
   "next_scheduled_calculation_time": "13367557025753642"
}
