{
   "epochs": [ {
      "calculation_time": "13371745365268350",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13380051805837946",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "FDBBE747527FBDAAC3E1CE19C28EF067B1C540EECB9DBA1C908C63A383DE6E3E",
   "next_scheduled_calculation_time": "13380656605838178"
}
