Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDyfyprAtz+5uLB4Y9WzOI5sx0C2XL5gKJpRlC+bHyGYEpIGjAyXkJ4lYNA… (844 chars)"
  }
}