UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rVx3KDIPlniXy4Tzv66Xl7+92A2MXua/T/jxSc6m4og=' 
WHERE 
  key_id = '15bb7b6edb88c6a7b295506200da235e6b1e76cc46598481381ac8f9602f5d8a' 
  AND (
    token = 'rVx3KDIPlniXy4Tzv66Xl7+92A2MXua/T/jxSc6m4og=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )