Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwAHkwB0hfWGaWpKxWqfjcP3oeD/1+kkiU4acy5g8C1I2RbpFjTPxdZ9/otU… (844 chars)"
  }
}