Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHs8NmapidS2pCdYKrj8wA5jkQz+1DGxvyTGXU/zPM0FiAMMJmwkvgXHIYa… (844 chars)"
  }
}