{
   "epochs": [ {
      "calculation_time": "13366399301562484",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367064467456789",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "0274546D1AC374850D249A422768AE26D2D7BF6031CA5EEAAA94167EF36BEE42",
   "next_scheduled_calculation_time": "13367669267457253"
}
