Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCzA6H/OsP0wIgU0ruOm8YLYaJhFlVXZ7f04IvvlRcCGy44VSD/0L2XM/kB… (844 chars)"
  }
}