{
   "epochs": [ {
      "calculation_time": "13370892427464229",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13378925096488122",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "73C64D5D5950DE2BD6AACCF7E0E560EBDB699FD635F6AC370B2FDB5A06AB71E1",
   "next_scheduled_calculation_time": "13379529896488169"
}
