Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwE4/X0fAZNx0CDVGEm+9DUEH8qx2+e6phKHvw+zv6AvRhJNwBfQSdZNJ07Z… (844 chars)"
  }
}