UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'aEk3CXGtx0qBhGhnJAh6GUcw9fe0uZyoeYftvOw/494=' 
WHERE 
  key_id = 'b3d40a817259a847b2f4a7fef813e054466760cb43af10a5f970744c5fd72e27' 
  AND (
    token = 'aEk3CXGtx0qBhGhnJAh6GUcw9fe0uZyoeYftvOw/494=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )