Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFW3qYOKNieJSr2N7fYo4l7fRqMb76FVXI8RQ/Eu3ywhT2HJIy7/ztL3qwJ… (844 chars)"
  }
}