{
   "epochs": [ {
      "calculation_time": "13366204368099420",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367186666631952",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "D4DA2EC8BFCDAF0630D119BEDB0C3EB9D72030A1630F0AD005EEDD2182738364",
   "next_scheduled_calculation_time": "13367791466632097"
}
