curl --request GET \
  --url https://staging.afx-server.com/api/v1/customer/{customerId} \
  --header 'x-api-key: <api-key>'

{
  "data": {
    "customerId": "<string>",
    "fullName": "<string>",
    "email": "jsmith@example.com",
    "phone": "<string>",
    "countryCode": "<string>",
    "kyc": {},
    "meta": {}
  }
}