{
   "epochs": [ {
      "calculation_time": "13366696564574968",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367360902888113",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "7F986D486E4211CF2BF7CB3FBFB32A92A55A7E06B5ABFA6A1386AA12B1E681C1",
   "next_scheduled_calculation_time": "13367965702888370"
}
