Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGEgBJ/JjMXlhC7RZiyCOHRn/AFhRLmyPsr02XngR1+xCL7gu3QzqGQ0nnF… (844 chars)"
  }
}