Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCTpSHzEN/D4a9rzvy8b2rs/E5HKAkQWOLmW4d2OCI1HDjeOJXyTlk6X/h/… (1,748 chars)"
  }
}