Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHlc8wAWW3Oq399lidc+s1IbVzT9Kl9J9myuc5Nq0M5eGjVET/ckasL7Lr7… (844 chars)"
  }
}