Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHKJEKvVR3xA+W91VTf2ELgVrYg9bFoyccsN0z+gqpxZFYkR4X+hlIpkXka… (844 chars)"
  }
}