Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwC5V5QBpYznbwkdIa6u2r8aLDNc7nRrYiFfO7R1/1CVfSxrx9kTR3Has/KG… (844 chars)"
  }
}