Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEwGXk4E6SKTKMIhBD2rIQIt6wAeoQhcDX5JcbES2Q3M2ZXNEiFy+ZU7OyA… (844 chars)"
  }
}