Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHN3PsKKpLzx0voW+zzel9qagRdMIO/7Dg0lx1EerY8Pzg/L0ZWhBaU6zSq… (844 chars)"
  }
}