Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQHtkumJsAMlkL5QZ4qr1c8Y0eeghetdvsw1Ovot7JVCRlTDNTc6amHfT2b9… (1,748 chars)"
  }
}