Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCRAX9y+mDoODHc1y8XNF/DRdDvty9e0ht0pr4CBCedhmtHoC/5RBe4Wxw8… (1,748 chars)"
  }
}