Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwD3QCmInAD6JZOGmXpj6voUOILslpmxeWJKf+MR8WGLiWp+ZCXTkgfC5fii… (844 chars)"
  }
}