{
   "epochs": [ {
      "calculation_time": "13366228334963221",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13366893320624504",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "CE5ADE5E1FE3BE8A28D287D1940FA9E9BDF358DD1AEF7911BB26820BAFFCF0FC",
   "next_scheduled_calculation_time": "13367498120624591"
}
