UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '28hzCd7NCUaQjcyvZboj0OWtRfhobYEIs33/jjeVJZs=' 
WHERE 
  key_id = '38a74a60da5f5ec7606c7d64671b2a03b8040d39381c1444320bf381d0b1c9a6' 
  AND (
    token = '28hzCd7NCUaQjcyvZboj0OWtRfhobYEIs33/jjeVJZs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )