Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwF9xgTzdtPsNrO+EKZQ27o5i/3e9IIh0Xi301Dvm2tGfmwZ4aL2Jg+9xYgJ… (844 chars)"
  }
}