Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDlBrJ3mQlUz3WzFFM0EZ7HVRuz0RdWKzLGvovgJ9j0C1oPQ87lrMhhzDq/… (844 chars)"
  }
}