UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Vd3Y2ptUYGKmKl6uRnVpJoZ8/GfVUEtiUFEMjRHzyAc=' 
WHERE 
  key_id = '50fd370c29c84bb674c63a1782858b504eebdc69e69c09a4d624c51e5a7082dd' 
  AND (
    token = 'Vd3Y2ptUYGKmKl6uRnVpJoZ8/GfVUEtiUFEMjRHzyAc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )