Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGTep20C9zq8y4FY1mBnPuRgb73IO0UBElXlj6JjKPvmTR3wIGC7Fg+vHu9… (844 chars)"
  }
}