UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'S4NXGcuwjPEIKhU6DB9E+rRhadxulVWPknawEFRsx7c=' 
WHERE 
  key_id = '79c8df73847609a4d7c7b97b72bcc9473abc6494af4f188d357e67bb78efc30b' 
  AND (
    token = 'S4NXGcuwjPEIKhU6DB9E+rRhadxulVWPknawEFRsx7c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )