Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQEGAWS47itjfiT+OQ23M2ReSfvkScwYt/XQl6GTIIfRbU9QK4UfF4f5Qo2j… (1,748 chars)"
  }
}