Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQCKnCF/RPfNRyMa3//X0S5TFhjkEAK/+RCc+4npr6kEuW8cXi2G1qFfh609… (1,748 chars)"
  }
}