Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHxuxsAk0fR/1+LD7VBOP36aJ/gC7TuKJ9uqerp1KW2d0VBr2EKFm2BliR2… (844 chars)"
  }
}