UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u2ahHp/FCBNscMwZqZQDWvDxrjE1wW2ri6CbmnhCCEk=' 
WHERE 
  key_id = '520977848b02fcb138722428f2531f44a7df4dd281feb1ab8fb802bd84e85915' 
  AND (
    token = 'u2ahHp/FCBNscMwZqZQDWvDxrjE1wW2ri6CbmnhCCEk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )