Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEc1YTz5Uojtk8rkd91/S7vxBMEzKiC3IOZ1gsDgugwXxeHjbSs0P0QC8Bp… (844 chars)"
  }
}