Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwA9t1WQYC3KMEuoq4f33C9QdxlA2BUczqI//RZ0fEoBrh3kG7Fco1wNV7gW… (844 chars)"
  }
}