UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r+fjNUsEvXeYyCmknpIJZDN7WVxe/BF75XKvNdPLdMY=' 
WHERE 
  key_id = '4d1639dfb615b140ee8da38e23982ecb79521fedba2c08120c45a0565a3cdb14' 
  AND (
    token = 'r+fjNUsEvXeYyCmknpIJZDN7WVxe/BF75XKvNdPLdMY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )