{
   "epochs": [ {
      "calculation_time": "13371086545465774",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13379384032934402",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "DEC88BE9406253C4481F50D95736F958F00AB0B3040D0A69920357AC36DE4AB8",
   "next_scheduled_calculation_time": "13379988832934512"
}
