UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EkRMPBCkWvdpV6gtgVPRslxtWqAdL6XzDkJ6CmsFsHI=' 
WHERE 
  key_id = '52b8d831e5e48b2a9f84372001be9136f230e79b91eca408b9750b564759824b' 
  AND (
    token = 'EkRMPBCkWvdpV6gtgVPRslxtWqAdL6XzDkJ6CmsFsHI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )