Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFLBShbUqXcWNSNQvvq7tU/ya1mlXp3XHduZO1RTuSAkFt7PtnGjmTc6Xb9… (844 chars)"
  }
}