Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHvy04ln4oGAnZMI0gL3+yC94R7KAC+YFNK5TmaeHHxMx0XtGnwlUiw7kCZ… (844 chars)"
  }
}