Create users and roles in SQL Script with ASP.NET Identity

We have used Membership earlier and now in the new project we are using Identity for authentication and authorization. We are able to create users and role programmatically (in Seed method of Identity project). We also need to link these membership user to application user e.g Employee while creating users in Seed method of application DAL. For which earlier we had used SQL Script. Now similar SQL Script we need to write to create Identity users and roles. From SQL Script we could grab MembershipId for user and use this MembershipId value to assign it Employee's MembershipId column.

The problem we are stuck at is, the stored procedures e.g. "aspnet_Membership_CreateUser" which was available in Membership DB (aspnetdb), not available in Identity DB we created.

The script looks like below:

    -- Create roles for 'XXX' Application 
    EXEC [aspnet_Roles_CreateRole] 'XXX','ADMIN'
    EXEC [aspnet_Roles_CreateRole] 'XXX','USER'

    -- Create new membership user 
    EXEC @return_value = [dbo].[aspnet_Membership_CreateUser]
    @ApplicationName = N'XXX',
    @UserName = N'[email protected]',
    @Password = N'QhoM803ew/sdfdf/4NQ=',
    @PasswordSalt = N'dGzG1ddfdfdfk1Kqwddff==',
    @Email = N'[email protected]',
    @PasswordQuestion = N'secretQuestion',
    @PasswordAnswer = N'secretAnswer',
    @IsApproved = true,
    @CurrentTimeUtc = @nowUtc,
    @CreateDate = @now,
    @UniqueEmail = 1,
    @PasswordFormat = 1,
    @UserId = @MembershipId_OrgAdmin OUTPUT

    PRINT 'Test Admin Created successfully.' 

    -- Assign role to user
    EXEC  [aspnet_UsersInRoles_AddUsersToRoles]
        @ApplicationName  = N'XXX',
        @UserNames        = N'[email protected]',
        @RoleNames       = N'ADMIN',
        @CurrentTimeUtc   =  @nowUtc


    PRINT 'Test Admin assigned to ADMIN Role successfully.' 

    -- Finally create a application user and connect it to membership user

INSERT INTO OrganizationUser
(MembershipId,IsDeleted,FirstName,LastName,PhoneNumber,Extension,Address1,Address2,City,State,ZipCode,Country,JobTitle,IsActive,OrganizationId,IsPasswordReset,DownloadCode,IsContactPerson,LastLoginDate,WelcomeEmailDate,CreatedDate,CreatedBy,UpdatedDate,UpdatedBy)
VALUES
(@MembershipId_OrgAdmin,0,'XXX','Admin','2888262','800','ABC','Charlotte, SC 21270','SC','SC','21270','US','XXX Admin',1,(select OrganizationId from Organization where  Name='XXX'),0,'1-1-14110985',1,null,null,@now,null,@now,null)

Question:

1. Does these stored procedure exist in Identity?
2. What are the possible/suggested ways to deal with this situation i.e. link membership user with application user using Identity?