UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MrnpSVvwXYzSGU/cUBITsRGPkJ5ETp768on7OqzRzN8=' 
WHERE 
  key_id = '21fed94eb27a8cb9c4761e35230c17fcf04b58e67cfe1172516cab2720f99ddc' 
  AND (
    token = 'MrnpSVvwXYzSGU/cUBITsRGPkJ5ETp768on7OqzRzN8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )