Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHD2B1a3TN6SWdc0X3dIMAlk+ot1KWvmY2Z8SQrMgvA5C2W+7LT4SATxx3H… (844 chars)"
  }
}