UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KHzgnTn+hp882YFiKMUfcyvrmKOGkWtSQZKCfht92Kk=' 
WHERE 
  key_id = '7f4a6d1838ed3dca6cd1abc6586c861829d3b379ba6204e0b7ee5defbd9bed48' 
  AND (
    token = 'KHzgnTn+hp882YFiKMUfcyvrmKOGkWtSQZKCfht92Kk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )