{
   "epochs": [ {
      "calculation_time": "13366588650328322",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367248415443286",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "78ED1FF63C18F44FB0F5BED68D58E32BD9E95E7CA7E4866072B3BE2944887BC4",
   "next_scheduled_calculation_time": "13367853215443437"
}
