{
   "epochs": [ {
      "calculation_time": "13370891304784191",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13378918928346238",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "1730B0E58AD1E3F50F6881BABA3FDB1CB8380C12FDF8C63E7280D2455B0662BB",
   "next_scheduled_calculation_time": "13379523728346285"
}
