Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDB2eNQw9D+bh3zrFbwfjwK5iM7cIYP0POC3H7A2C3/5yV9PJbH47vx8bF5… (844 chars)"
  }
}