UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/DN+LCRYdhoSqaLmn3tgZ5R2cwvNhdam4i4iSF5s+sc=' 
WHERE 
  key_id = '51dec5247d90af2a62eefb916b76cb36f07adad6edc077c91fde92fa6f65fd7f' 
  AND (
    token = '/DN+LCRYdhoSqaLmn3tgZ5R2cwvNhdam4i4iSF5s+sc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )