{
   "epochs": [ {
      "calculation_time": "13366743246529409",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367414778947703",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "3D976868729785E62572C5CEB4CD045273451D62FDB9BBE033047DD7FB011D84",
   "next_scheduled_calculation_time": "13368019578947917"
}
