Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHF5dkQbEEF2/ERHx4ivDq2y7GjbMsRFge9cPOPbF/Uvnx7fyXLeG9SbDhM… (844 chars)"
  }
}