Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDn/9bRzpmoS0/j8vDpIeGv2bIR4D5mVMY2RDHPo7UPOz+u3rsKDGlSBHOE… (844 chars)"
  }
}