Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwD5/qr2Eo+8Ug8fxdPipGTEpAcocS8y7Uymb10WmGHX1TBU/1YybZafwtb5… (844 chars)"
  }
}