{
   "epochs": [ {
      "calculation_time": "13366317276308926",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366982776494300",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "F2C89181CF179E85AB89BB33EFB01E85F31E09DB591C3E1F8BFFBDA3763508A4",
   "next_scheduled_calculation_time": "13367587576494440"
}
