UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rhzfh7h69JxrrXDVo1xqr1aafCkkVnBzeQGRNMfAYDA=' 
WHERE 
  key_id = '50495fd2b92d8533fa8ab80f36b09079be067072e5d4b1821661eb7a7e7c21a2' 
  AND (
    token = 'rhzfh7h69JxrrXDVo1xqr1aafCkkVnBzeQGRNMfAYDA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )