UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Nf+qDW7nWxwAqRSoeTDoToQbCizCmIfBzprroNqH1kk=' 
WHERE 
  key_id = '51712d91636d7ba58a38dab625dbdb0ec21397e241ab51f704c483a7f944ff6b' 
  AND (
    token = 'Nf+qDW7nWxwAqRSoeTDoToQbCizCmIfBzprroNqH1kk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )