{
   "epochs": [ {
      "calculation_time": "13366709587730535",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367374069981674",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "2A14252CC5E2C27E94A29BC9A29F88735EA8370083E6CFFC54686F1B2E45EFB9",
   "next_scheduled_calculation_time": "13367978869982234"
}
