UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MDjm3/EDpwjlQrNZmkSQ3wBVxrb/kqAeFtG8pyfURhU=' 
WHERE 
  key_id = '75dbbb5546ed6b077f91061fb76458a0f07b6240b9342813642a80c87c0c7bce' 
  AND (
    token = 'MDjm3/EDpwjlQrNZmkSQ3wBVxrb/kqAeFtG8pyfURhU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )