POST api/{version}/OAuth/CheckEmailIsExists

{
  "FirstName": "sample string 1",
  "LastName": "sample string 2",
  "EmailAddress": "sample string 3",
  "PhoneNumber": "sample string 4",
  "Password": "sample string 5",
  "ConfirmPassword": "sample string 6",
  "GoogleReCaptchaResponse": "sample string 7",
  "Domain": "sample string 8",
  "IsFrom": "sample string 9",
  "RedirectUrl": "sample string 10",
  "UserAccountSetting": {
    "UserAccountSettingId": 1,
    "UserId": "sample string 2",
    "IsSSOEnabled": true,
    "SSOAccountID": "sample string 4",
    "SSOIssuer": "sample string 5",
    "IsActivated": true,
    "CorporateId": 7
  },
  "Students": {
    "studentId": 1,
    "SocialSecurityNumber": "sample string 2",
    "prefixId": 3,
    "firstName": "sample string 4",
    "lastName": "sample string 5",
    "suffix": "sample string 6",
    "emailAddress": "sample string 7",
    "mailingAddress1": "sample string 8",
    "mailingAddress2": "sample string 9",
    "city": "sample string 10",
    "stateId": 11,
    "postalCode": "sample string 12",
    "country": "sample string 13",
    "addressTypeID": "sample string 14",
    "companyName": "sample string 15",
    "homePhone": "sample string 16",
    "workPhone": "sample string 17",
    "mobilePhone": "sample string 18",
    "futureRegistrationId": 19,
    "primaryPhoneType": "sample string 20",
    "secondaryPhoneType": "sample string 21",
    "incentivePaymentType": "sample string 22",
    "primaryExtention": "sample string 23",
    "secondaryExtention": "sample string 24",
    "otherExtention": "sample string 25",
    "donotSentEmail": true,
    "studentBelongsTo": "sample string 27",
    "ipAddress": "sample string 28",
    "isPasswordChanged": true,
    "adobeUpdate": true,
    "discussionForumPoliciesActivated": true,
    "isFreeRegistration": true,
    "showHelpVideo": true,
    "lattitudeLocation": 34.0,
    "longitudeLocation": 35.0,
    "donotShowOnMap": true,
    "nameUpdateStatusInAdobe": true,
    "quizzyBoxUserId": 38,
    "movedToEdumind": true,
    "countryId": 40,
    "homePhoneCountryCode": "sample string 41",
    "workPhoneCountryCode": "sample string 42",
    "mobilePhoneCountrCode": "sample string 43",
    "pwd": "sample string 44",
    "ProfilePictureFileType": "sample string 45",
    "SubscriptionStatusTag": "sample string 46",
    "AccountId": "sample string 47",
    "Issuer": "sample string 48",
    "IssuerChanged": true,
    "CorporateId": 50,
    "Redirecturl": "sample string 51",
    "HomePageUrl": "sample string 52",
    "PrivacyPolicyUrl": "sample string 53",
    "Domain": "sample string 54",
    "UserTypeDetails": [
      {
        "EmailAddress": "sample string 1",
        "UserTypeCode": "sample string 2",
        "DomainCode": "sample string 3",
        "DomainName": "sample string 4",
        "IsActive": true
      },
      {
        "EmailAddress": "sample string 1",
        "UserTypeCode": "sample string 2",
        "DomainCode": "sample string 3",
        "DomainName": "sample string 4",
        "IsActive": true
      }
    ]
  },
  "UserEmailVerification": {
    "UserEmailVerificationId": 1,
    "ErrorMessage": "sample string 2",
    "Domain": "sample string 3",
    "IsFrom": "sample string 4"
  },
  "HomePageUrl": "sample string 11",
  "PrivacyPolicyUrl": "sample string 12",
  "IsFromSSO": true,
  "PhoneCode": "sample string 14",
  "CheckCorporateOfferElligibility": true
}

Sample not available.