Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFCDrp5zz1oJFfThB6OtN/+euGI+ck1X5faNOUm31UuqQuFc5gn9PwdY5b8… (844 chars)"
  }
}