{
   "epochs": [ {
      "calculation_time": "13366393791104987",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367058926800218",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "FFC7967D403F5C039A3BB50B6E16456B5B5138DA5F673313919248718DAD07B6",
   "next_scheduled_calculation_time": "13367663726800707"
}
