UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'yQCGDVUUjX8jExs3SMtc9AU828S8fM5gT7zxu4pxACk=' 
WHERE 
  key_id = '4bc9649b21b1ea7940457a79414fbb71e4cd8801b147f9b69cdbc1cb2af39421' 
  AND (
    token = 'yQCGDVUUjX8jExs3SMtc9AU828S8fM5gT7zxu4pxACk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )