Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwD/AGJyb1jmKn/JBIJOFaVUPiILWruCX5IzvrYtFBljjCkPfyEp2D4Kw99j… (844 chars)"
  }
}