UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vOkxSPbmsGmCsntM19QzVgUDRkHKJmfy03FOxMBp+dc=' 
WHERE 
  key_id = '571b90df316763e3a420f6f7c4cb865e462274cec16385500f0d24109d7b53f3' 
  AND (
    token = 'vOkxSPbmsGmCsntM19QzVgUDRkHKJmfy03FOxMBp+dc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )