UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ohcs9Y8Q+P4iXx+QtjrVhUXfZRN1GMEtNsiBvDmJ1QY=' 
WHERE 
  key_id = 'ce8bd3004a4fe20ec3179f4a9c8cababe0e1a74e3b0cf79e46be38b209ea9e9f' 
  AND (
    token = 'ohcs9Y8Q+P4iXx+QtjrVhUXfZRN1GMEtNsiBvDmJ1QY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )