UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Emmd+ZaUHCaW16KsngvFOkoNosF2iF/5xf8/AjPH2X0=' 
WHERE 
  key_id = '83b7a5b02e864a355d7acb6a11704813d8801d539fb916dceaf0f0fdd526499a' 
  AND (
    token = 'Emmd+ZaUHCaW16KsngvFOkoNosF2iF/5xf8/AjPH2X0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )