Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEDySpC18PXI7S/ZbFJ3w6smhMWk0LiHjF4uKW9IITrHSeoGHX2qXw7Yv+J… (844 chars)"
  }
}