UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VwDspFT2/Y0WtTvdc7AK4aiGLtkLgICWqA8E8ORa0O4=' 
WHERE 
  key_id = '31a3bc1ce1a018aed9f53d28df52d977e2f8816b62332b94ad10a22475e8a210' 
  AND (
    token = 'VwDspFT2/Y0WtTvdc7AK4aiGLtkLgICWqA8E8ORa0O4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )