{
   "epochs": [ {
      "calculation_time": "13366230807816291",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366895737098695",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "797D66E9C0759E78281BBF4A8E58383FFA4A223050569A85B1D0406C63C74038",
   "next_scheduled_calculation_time": "13367500537098927"
}
