{
   "epochs": [ {
      "calculation_time": "13366233212207324",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366898193352252",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "001760D864BAD56B2CC514AB57BC0DB0D5859276F53110096AD5A41CD2E492E4",
   "next_scheduled_calculation_time": "13367502993352412"
}
