UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '1tbgkurgDJ/yM/3k5wowW9203jlxua3gwrRw4s7V0CY=' 
WHERE 
  key_id = '19c91caf446453aca47aa851c363f6f2fd4cce372c5c775193a6b5670adcec6a' 
  AND (
    token = '1tbgkurgDJ/yM/3k5wowW9203jlxua3gwrRw4s7V0CY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )