{
   "epochs": [ {
      "calculation_time": "13366373401501269",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367038506625849",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "97CAF831C0138CB62E4A368D24E5649C9347DBD7F321941E6E2EAAABC5BCA1EC",
   "next_scheduled_calculation_time": "13367643306625972"
}
