Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGfsgXc7/Z/GZ1rKCR7ZmYd7mN+kmDNetbuXoZMt+xR9g8fvED4XbVq0Cj6… (844 chars)"
  }
}