{
   "epochs": [ {
      "calculation_time": "13370945214186520",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13379103602601452",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "F5F564DD4D6EAAE17D6AEED6D9A01BBF11903047762818301C4F674DDAE612F1",
   "next_scheduled_calculation_time": "13379708402601524"
}
