{
   "epochs": [ {
      "calculation_time": "13366760565873172",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367432681530215",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "DF659289C070E78E78827898B455506B895A6B4DBF91FCF94B9DE05B547D4D6D",
   "next_scheduled_calculation_time": "13368037481530440"
}
