{
   "epochs": [ {
      "calculation_time": "13366396687406120",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367061820609191",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "97D413C0E5C2C69F3C2BFE9B5BCDD6D546A46884FFD18536CBDABC3BB95BE7B6",
   "next_scheduled_calculation_time": "13367666620609479"
}
