UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'erxIo6EBap2jDT3uJMYj5v2qldwkbPzNYHiXxa7atPE=' 
WHERE 
  key_id = '68f235cbe052164b2e654df67c029817bbee1eab9837d823846360c626b03669' 
  AND (
    token = 'erxIo6EBap2jDT3uJMYj5v2qldwkbPzNYHiXxa7atPE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )