{
   "epochs": [ {
      "calculation_time": "13370609521470050",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13377427078903475",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "A5389A054DB94A2363EAF15FBA38D5999F5DAB5FF29B6FBD65E80EB74A4B6A60",
   "next_scheduled_calculation_time": "13378031878903680"
}
