Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwA4eKAzX7B6I2gGVXPMGMSfdF/rfSiYkywJk1XWyO4v50owVdm0XH+bFUdj… (844 chars)"
  }
}