Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwG5/lZzOi1CcjpeXR01fI9Y0mRvtGh9OktmVvR1smGjTR3J6T0OTl/qSMrA… (844 chars)"
  }
}