{
   "epochs": [ {
      "calculation_time": "13366214609707541",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366879639894670",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "CE18F7F44BF1ED1B5736CCBC0F2ACFE0D1ECA8929799E07F3AD8A9065A6BCF5C",
   "next_scheduled_calculation_time": "13367484439894797"
}
