UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mcTR+p6hQu7qPAukmFMX8ms1RqvUD7DDsUYlfeiJcDA=' 
WHERE 
  key_id = '68eb6df866fa40549ea1cc0dfc71929b1b4ff936e90f49a47711735e1b8dc530' 
  AND (
    token = 'mcTR+p6hQu7qPAukmFMX8ms1RqvUD7DDsUYlfeiJcDA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )