Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwF6nJtZHNksp7j9HbM3hH0vP2fBwyEIWmjWzEDQb4jn7Hx/D0CCm4QpsHES… (844 chars)"
  }
}