UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4a8YtkHwlwKFdHsJ3WolPwVQFm6GH3MGNXGftTXL8BE=' 
WHERE 
  key_id = '6af291485c3916bfe04d0a46957e07fba9d51fb3a553094cfaaecb7b03972f24' 
  AND (
    token = '4a8YtkHwlwKFdHsJ3WolPwVQFm6GH3MGNXGftTXL8BE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )