{
   "epochs": [ {
      "calculation_time": "13366650324429260",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367312611786097",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "7C6B1A798AFB80EC7EBBF7A80AD7C26E0B815D5FE3E35523EBD4B5E94C9966E8",
   "next_scheduled_calculation_time": "13367917411786513"
}
