Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBl5Up+efwjnlb2k9p+t5J8Ag6vo2FXxPRyBngcwKYMfX3FgoDrCW8Br2F7… (1,748 chars)"
  }
}