Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQB+F/k4YVYUFqcHRgU/ljPvDOB7WpIxIB8wF57Nf1H0xzGJ6h7ycoJUS5F4… (1,748 chars)"
  }
}