Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFjvwul6U6kGO8ZNKY8F/1yYdEK01BIQ+y5hJ39OVCAMl+yL8pD/RsKY9N2… (844 chars)"
  }
}