Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQC6e6TWYsbq+QC+t4+4T1h0hGDI0TK64F/ttqPmvbIZR0ux0QBDLzeu45fx… (1,748 chars)"
  }
}