Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGexb8lQb7IYgCygKkM3EWW1UZr/6M70MjAVDWJp1dMDymoRUDFzHd67qHQ… (844 chars)"
  }
}