Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEhmM4FnePeNszqGhbxJkKoXWV8wzG0xKCRjrvUg44Uu1N+6zFfbCKcJR1Z… (844 chars)"
  }
}