UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'bM8MEcEo5NU3xV52cOpLW3i68YXwJRHDyWlokpBfDYU=' 
WHERE 
  key_id = 'd6e9bf57fd08c998912c09214e8206dd2ab190421b3cfa4b97768b04e62a2dc2' 
  AND (
    token = 'bM8MEcEo5NU3xV52cOpLW3i68YXwJRHDyWlokpBfDYU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )