Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHMK+SmvDLb9T5dLOSK+QyL/YL07quArD7pQmEF5RcMEDVdBC5Gjk6UwqmR… (844 chars)"
  }
}