{
   "epochs": [ {
      "calculation_time": "13366753633739887",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367425789877768",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "BB8023B0B0CD91A8BEB0D8D3DD9B44102C8ED3C9FBD5BFCDEE0F53589EEBAFB2",
   "next_scheduled_calculation_time": "13368030589877943"
}
