UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SrTrucvCcjiJtfezcWoRHvkPzYnCTCtzsFidlzTIQYs=' 
WHERE 
  key_id = '87838c18b0efcce95131143a03028d1e47889132929cf283cd1226d347d43901' 
  AND (
    token = 'SrTrucvCcjiJtfezcWoRHvkPzYnCTCtzsFidlzTIQYs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )