{
"availability_check": {
"national_registration_number": "string",
"date_of_birth": "2019-08-24",
"given_name": "string",
"family_name": "string",
"email_address": "string",
"phone_number": "string",
"postal_code": "string",
"currency": "GBP",
"employer_name": "string"
}
}