Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwB4ynWzw0Sy9vTwXC71mS3VbMH1Z0XROkF5NY+Sgj8zZnkke4flqvPJ+q9F… (844 chars)"
  }
}