Entity Framework - simple CRUD

// *** CRUD request model for notification ***
public partial class NotificationRequest
{
    public string Receiver { get; set; }

    public string Subject { get; set; }

    public string Body { get; set; }
}

// *** CRUD response model for notification ***
public partial class NotificationResponse
{
    public int Id { get; set; }

    public Guid Guid { get; set; }

    [Required]
    public string Receiver { get; set; }

    [Required]
    public string Subject { get; set; }

    [Required]
    public string Body { get; set; }

}

// *** CRUD GetAll() method implementation ***
[HttpGet("[action]")]
public ActionResult<IEnumerable<NotificationResponse>> GetAll()
{
    try
    {
        var allNotifications =
            _dbContext.Notifications.Select(dbNotification =>
            new NotificationResponse
            {
                Id = dbNotification.Id,
                Guid = dbNotification.Guid,
                Receiver = dbNotification.Receiver,
                Subject = dbNotification.Subject,
                Body = dbNotification.Body
            });
        return Ok(allNotifications);
    }
    catch (Exception)
    {
        return StatusCode(StatusCodes.Status500InternalServerError);
    }
}

// *** CRUD HTTP GET method implementation ***
[HttpGet("{id}")]
public ActionResult<NotificationResponse> Get(int id)
{
    try
    {
        var dbNotification = _dbContext.Notifications.FirstOrDefault(x => x.Id == id);
        if(dbNotification == null)
            return NotFound();

        return Ok(new NotificationResponse {
            Id = dbNotification.Id,
            Guid = dbNotification.Guid,
            Receiver = dbNotification.Receiver,
            Subject = dbNotification.Subject,
            Body = dbNotification.Body
        });
    }
    catch (Exception)
    {
        return StatusCode(StatusCodes.Status500InternalServerError);
    }
}

// *** CRUD HTTP POST method implementation ***
[HttpPost()]
public ActionResult<NotificationResponse> Create(NotificationRequest request)
{
    try
    {
        if (!ModelState.IsValid)
            return BadRequest(ModelState);

        var dbNotification = new Notification {
            Receiver = request.Receiver,
            Subject = request.Subject,
            Body = request.Body
        };

        _dbContext.Notifications.Add(dbNotification);

        _dbContext.SaveChanges();

        return Ok(new NotificationResponse {
            Id = dbNotification.Id,
            Guid = dbNotification.Guid,
            Receiver = dbNotification.Receiver,
            Subject = dbNotification.Subject,
            Body = dbNotification.Body
        });
    }
    catch (Exception)
    {
        return StatusCode(StatusCodes.Status500InternalServerError);
    }
}

// *** CRUD HTTP PUT method implementation ***
[HttpPut("{id}")]
public ActionResult<NotificationResponse> Modify(int id, [FromBody]NotificationRequest request)
{
    try
    {
        if(!ModelState.IsValid)
            return BadRequest(ModelState);

        var dbNotification = _dbContext.Notifications.FirstOrDefault(x => x.Id == id);
        if (dbNotification == null)
            return NotFound();

        dbNotification.Receiver = request.Receiver;
        dbNotification.Subject = request.Subject;
        dbNotification.Body = request.Body;
        dbNotification.UpdatedAt = DateTime.UtcNow;

        _dbContext.SaveChanges();

        return Ok(new NotificationResponse
        {
            Id = dbNotification.Id,
            Guid = dbNotification.Guid,
            Receiver = dbNotification.Receiver,
            Subject = dbNotification.Subject,
            Body = dbNotification.Body
        });
    }
    catch (Exception)
    {
        return StatusCode(StatusCodes.Status500InternalServerError);
    }
}

// *** CRUD HTTP DELETE method implementation ***
[HttpDelete("{id}")]
public ActionResult<NotificationResponse> Remove(int id)
{
    try
    {
        var dbNotification = _dbContext.Notifications.FirstOrDefault(x => x.Id == id);
        if (dbNotification == null)
            return NotFound();

        _dbContext.Notifications.Remove(dbNotification);

        _dbContext.SaveChanges();

        return Ok(new NotificationResponse
        {
            Id = dbNotification.Id,
            Guid = dbNotification.Guid,
            Receiver = dbNotification.Receiver,
            Subject = dbNotification.Subject,
            Body = dbNotification.Body
        });
    }
    catch (Exception)
    {
        return StatusCode(StatusCodes.Status500InternalServerError);
    }
}