Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGx/Ev8cn9ZVj4jGJH+wVOJrR8Z4j84mfHV8h0Hl3A9hieZJP5GSwn1n4iU… (844 chars)"
  }
}