UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mVRg600+hzqryHuFus/Sn5n1ZFtRsaFAkGit3DczhyY=' 
WHERE 
  key_id = '261518597c283f218b2fbae82f5989ba59dc0cb978d93a4905a35f5f1bf60140' 
  AND (
    token = 'mVRg600+hzqryHuFus/Sn5n1ZFtRsaFAkGit3DczhyY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )