Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFUk9Gu1hO7sl0HOXdZDK8H+U7vwvx45875qpZCGQKnVy7SZ01Nzd+5vPfN… (844 chars)"
  }
}