Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEHXGVqifsBiJwzDsU+QKIEjWOz7Hu+yoB7/WZccrTj4DjTxXq/oY3NA90+… (844 chars)"
  }
}