UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Ag7bWVBMEId3fiAYXD3nTOGuP3zzEi3/8vZLku4LoG4=' 
WHERE 
  key_id = '21b4d334541551ccb2cbe644f890ecd552a15f7a17f067fc2a53e11561a8cb83' 
  AND (
    token = 'Ag7bWVBMEId3fiAYXD3nTOGuP3zzEi3/8vZLku4LoG4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )