{
   "epochs": [ {
      "calculation_time": "13366336152026140",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367002370130000",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "ACFCCE347CCF4696D2115033C972AEF7B4DE2E37F7BF7D0E09C9DB485679C2F9",
   "next_scheduled_calculation_time": "13367607170130533"
}
