{
   "epochs": [ {
      "calculation_time": "13370764097261860",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13377942073901972",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "C6DC464D219CB1E37A085127BA3E2677FEC8F7AA74E445CEEFC605E742310AFE",
   "next_scheduled_calculation_time": "13378546873902055"
}
