Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDXU6flf5YpyDSZtpOy9d5QUZ7qtGTz7s6GO2vBWv8eFgPGOBrZQ8Bc4V3x… (844 chars)"
  }
}