{
   "epochs": [ {
      "calculation_time": "13366390480971629",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367055708534348",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "E0F934AD3941FA77BF44DA79B3FE9D5ABA311A9E4AFB074EA76A9E050FA28782",
   "next_scheduled_calculation_time": "13367660508534842"
}
