Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwL+S6ZQjZv/lmQdKLSLoqDnW8OfSSKxrrP+5oWL+HdwvQKCR9A/AdLRl0jK… (844 chars)"
  }
}