UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EHqexadixMM2n9eosflF1ktzyKwEc3H3C8IYQw3ieOk=' 
WHERE 
  key_id = '76047ebcf1ae07154998aef1769c32b93d0b44b21d8ab25a8e0eb5f18a154753' 
  AND (
    token = 'EHqexadixMM2n9eosflF1ktzyKwEc3H3C8IYQw3ieOk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )