{
   "epochs": [ {
      "calculation_time": "13366615971121305",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367276023576747",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "4C8C12B21E115D50FD772A77372E050BFB455F264C285D26BFDB5B99BDED41B1",
   "next_scheduled_calculation_time": "13367880823576851"
}
