UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'B7fqiPYDsEGupAjm1foMSd+zSdjTBxlOskVAE0/lup8=' 
WHERE 
  key_id = '521071fb87e5fa5fad95ebcac4e28b42534a1368b098463b4bcdef046179d0d1' 
  AND (
    token = 'B7fqiPYDsEGupAjm1foMSd+zSdjTBxlOskVAE0/lup8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )