Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwD61svfMemqozaM2W4qJZ8R4Jm6G8p3dy8VY6e7Vr2sUzm8cq4oTbGNtdOc… (844 chars)"
  }
}