Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGcnRz5/c4d1WdPVnNRvUMq0LGHK2HSoa6JyYqH6r0NCGF9DXr76SXQJaHm… (844 chars)"
  }
}