{
   "epochs": [ {
      "calculation_time": "13366701425685254",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367365772598532",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "A6B475FF12899827B01EC2D179CD4C200EC8A6AB3E2DC7E8EA98F17B472EC980",
   "next_scheduled_calculation_time": "13367970572598672"
}
