Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwG4b3fbEm2BASZA3Wqlxhw/W4O57V3T7xpMIFa3nJd5Iyz3kQxAv9Z+iFdZ… (844 chars)"
  }
}