Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFdgO86jHih2jqIl6+Qa/jYldIIXuH4oi3OA/5bIWlRM0QhiTWTTgX1DNQ9… (844 chars)"
  }
}