{
   "epochs": [ {
      "calculation_time": "13371123364445220",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13379556469616548",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "B2F2E7CBB97B3679B195F0BE113DE2ED34ECE1074447F3813C775D85733F661A",
   "next_scheduled_calculation_time": "13380161269616848"
}
