UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ekhun6uPMw6KcCPu1sjT9aEbwpWmhXR7Uq/ojm7jT7A=' 
WHERE 
  key_id = '4c946e38d666b76e04aed72cf1a1dc1349f1eb1b0e28bdeea9b3f94500bd8577' 
  AND (
    token = 'ekhun6uPMw6KcCPu1sjT9aEbwpWmhXR7Uq/ojm7jT7A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )