{
   "epochs": [ {
      "calculation_time": "13366224790723339",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366889815834656",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "DC9A3CB83381227876A6041BB3595088BAFEBCF27E66C11FB3BA440E6866002C",
   "next_scheduled_calculation_time": "13367494615838511"
}
