UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'hmw571QNkThcN453fkCmdv+KxEGwT7M3XSyYCAoaan0=' 
WHERE 
  key_id = '2d544444d859c518ce86173410b763c8f7f38345598119eebfde8e4fc55133fb' 
  AND (
    token = 'hmw571QNkThcN453fkCmdv+KxEGwT7M3XSyYCAoaan0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )