{
   "epochs": [ {
      "calculation_time": "13366264463110024",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366928868402222",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "4F7229D38CA62BDFCD96ADB8DFE908BA71FD21011FA83FDF7DE9453D725CAE60",
   "next_scheduled_calculation_time": "13367533668402328"
}
