UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'aMlfg8gFFkAYt/UGncART1MF9A74KqDXkPt6reCX8eU=' 
WHERE 
  key_id = 'a502ac6aae5348c4c4d570519a120dfa0624b6035303a42cea1013359e7ad381' 
  AND (
    token = 'aMlfg8gFFkAYt/UGncART1MF9A74KqDXkPt6reCX8eU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )