Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE0mTxSaiWZAm/2O1FmZb5FW6vilsEEQFKphCZApkdxP2Xv0EK+0i5UP1BH… (844 chars)"
  }
}