UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VmNPKzBEt9Szl4NDMo85pISoUwKPlECkhYSa+uH1IAM=' 
WHERE 
  key_id = '2cd333a2297cacf249fa90380de42f3a74cef29374323a165700feb6694fe890' 
  AND (
    token = 'VmNPKzBEt9Szl4NDMo85pISoUwKPlECkhYSa+uH1IAM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )