Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwH1/EIFTfvIy3QRJPNkE1KxTsE31sEFRbYGesaUM/6OEQ7R2SjcKbMZxAzR… (844 chars)"
  }
}