{
   "epochs": [ {
      "calculation_time": "13366804720202402",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367478727450950",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "4A1D666FD18048ACD18AF052D7F90DEDFC6D5157D2F9AF40169A66E2A6C92FC8",
   "next_scheduled_calculation_time": "13368083527451516"
}
