{
   "epochs": [ {
      "calculation_time": "13366291909665655",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366956248678447",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "C8DD5BFD5AAD50A8AC398FE945E9D01390CFBC50F1EEF97E0CCCB08F42C8471E",
   "next_scheduled_calculation_time": "13367561048678715"
}
