UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'yOUrVUihnYOw0xiL47X3kOvuyhbAHOvPOp/5gMs3neA=' 
WHERE 
  key_id = '2c0f9e3a1371836f943119ee8d61da7175b9c7f7617bf9a491db98a2aede0e5f' 
  AND (
    token = 'yOUrVUihnYOw0xiL47X3kOvuyhbAHOvPOp/5gMs3neA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )