UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PvtQgQz+wVqDfdhwNLRb7sln7yieXYtYIK6N4Ry5VF0=' 
WHERE 
  key_id = 'a5637d18eb6bf7a3e3497468dbfc19b7030b18f43408889fb82ec874da7bd7bb' 
  AND (
    token = 'PvtQgQz+wVqDfdhwNLRb7sln7yieXYtYIK6N4Ry5VF0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )