{
   "epochs": [ {
      "calculation_time": "13366786678556425",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367460239532518",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "ACD27D6ECE7622F4173984BA10A13C34428C1908BB44CFE06D1AE4BFDB51B996",
   "next_scheduled_calculation_time": "13368065039532771"
}
