Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE8lGzYQsh/Qp20XKxvG0mZqOcWdOo2JYIGQWJd54tKLVJr9smXZpZPypXh… (844 chars)"
  }
}