UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u4UsLZMu8Ya0QMM6pmjktvYy7BDsF5hp3pytnUNtd/I=' 
WHERE 
  key_id = 'd395e94f0da4e290f5b47e037758effafc5e69cad5f8e486caf159a2b2307719' 
  AND (
    token = 'u4UsLZMu8Ya0QMM6pmjktvYy7BDsF5hp3pytnUNtd/I=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )