UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'XjHERZ5RwJbCvD3CvmBWW97ig9hCVdW2sC6RWkUiLw4=' 
WHERE 
  key_id = '791f430204c99bbea9007a97f4d872a0de4758a1399e2f2355693abef854df75' 
  AND (
    token = 'XjHERZ5RwJbCvD3CvmBWW97ig9hCVdW2sC6RWkUiLw4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )