{
   "epochs": [ {
      "calculation_time": "13371065835235376",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13379343154790249",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "2472FAC3D3EC8D31ED5D35FE6EA7145CA9FF003A141A14EE2722EFDDFF42F8E4",
   "next_scheduled_calculation_time": "13379947954790547"
}
