{
   "epochs": [ {
      "calculation_time": "13366771966007989",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367444527599446",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "AB4C5E7EF1298EFFA7C83E90351A5CFD055784CED17516FE47907778FA3E8224",
   "next_scheduled_calculation_time": "13368049327599749"
}
