UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tKcCyW1X0crhdvoCFjqcqdEVNh2w5lnJ3K3qSn/BlFo=' 
WHERE 
  key_id = '68a881c4b3f15f215efbcfbf6a44bd9d773d399a703a75d8257ba4760522bca6' 
  AND (
    token = 'tKcCyW1X0crhdvoCFjqcqdEVNh2w5lnJ3K3qSn/BlFo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )