UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6z7Wymq5KCfTyFVgJjcFZzp64tle5mMn7+iR+GjmGbQ=' 
WHERE 
  key_id = 'e3d4d8b6f0aac6321918e262efa276a4158a5b9fd086e484286f085911d08200' 
  AND (
    token = '6z7Wymq5KCfTyFVgJjcFZzp64tle5mMn7+iR+GjmGbQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )