UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'TftRPDR/rwzwmF900FnYHKUFAkR1be3YeTlEPbCYqMw=' 
WHERE 
  key_id = '50e301ba4161711caa195192b6ed8e565a79601d8e25b29b151d50abfd4e8f41' 
  AND (
    token = 'TftRPDR/rwzwmF900FnYHKUFAkR1be3YeTlEPbCYqMw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )