UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lVTeqilrsln3T/HwjTTeartnx90/vcrTsobDZ+/yluc=' 
WHERE 
  key_id = '21f57e3b71d1b4435a1a6303f43b52e033fae340268fd7121ef5a86df33de947' 
  AND (
    token = 'lVTeqilrsln3T/HwjTTeartnx90/vcrTsobDZ+/yluc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )