{
   "epochs": [ {
      "calculation_time": "13366362107775223",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   }, {
      "calculation_time": "13367027470022430",
      "config_version": 0,
      "model_version": "0",
      "padded_top_topics_start_index": 0,
      "taxonomy_version": 0,
      "top_topics_and_observing_domains": [  ]
   } ],
   "hex_encoded_hmac_key": "A5BFBFEDB1A9B6066FBD438D9E1FDC3125CE7E3D61CA63D8AA89743223D98BA7",
   "next_scheduled_calculation_time": "13367632270022880"
}
