Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDFjR/YMdXhspn+5sRN5Cfp6KX0v+y+7e8VA+ypd+B8+A7bNVenRCI6V1ca… (844 chars)"
  }
}