Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEceVNWl/k8rzLwOECgBO1lw5fGm9fvB7fNiiaFQFNIVVdjTbFe+k4jFN5K… (844 chars)"
  }
}