{
   "epochs": [ {
      "calculation_time": "13366678334423515",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367341788370624",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "3BDFEA122DE1ECDD33348A8FED61004B72C7652A68D5758C01EB59780D18173F",
   "next_scheduled_calculation_time": "13367946588370784"
}
