{
   "epochs": [ {
      "calculation_time": "13366327939890700",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366993774460377",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "392C71D9CE30B40A9B1FAD5D77EFA54CD4778CAFE03931868F8D241DDB58B3E3",
   "next_scheduled_calculation_time": "13367598574460589"
}
