Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFjMYR8xUcdBaRsrlL21fbATPuLWC7lgpMcVZ7Gr7xIgC/kbcSZtZ/Kq7Af… (844 chars)"
  }
}