{
   "epochs": [ {
      "calculation_time": "13366600799679632",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367260456799100",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "AFC541CF8F95C2EFAF9956CD22F3C6DFC1B92C1187146EB96DFF9A86880A8444",
   "next_scheduled_calculation_time": "13367865256799312"
}
