{
   "epochs": [ {
      "calculation_time": "13371119992671280",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13379529691781962",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "19A20B2D0ACB9ABB2C798C3CA177E2F9302431E62E7F5B310887C4073513F276",
   "next_scheduled_calculation_time": "13380134491782301"
}
