Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHK7bNNnDZLnIAScuGR4Oe2m/NLHM4T6VIhnotzIsFdKgCbcH8XlzaOEOp/… (844 chars)"
  }
}