Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHnI0jcYwFpXyAj9dHwasvDxK3GcuJS5unjWQGI8F/Dlz5NZ/zc3nBB9AI5… (844 chars)"
  }
}