{
   "epochs": [ {
      "calculation_time": "13366722974624295",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367390187685962",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "7E2F9FFF53B3B30F61F96AF76CB6E9320131747C49DDC54F77F7962662D57AC2",
   "next_scheduled_calculation_time": "13367994987686700"
}
