UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ep6ohwlLvnxVTR7FN0lCKrbJmr7LwZ6PFwmuONv1alE=' 
WHERE 
  key_id = '81d0b29b0b59bb27cd290701ab81dcf1c5a08a5e50e0c4c3ccdb1c90258dfcae' 
  AND (
    token = 'Ep6ohwlLvnxVTR7FN0lCKrbJmr7LwZ6PFwmuONv1alE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )