UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QnLtEGx6N0fE5PYbOv4O1YuH4CdFSURdsNgrFZuIi1o=' 
WHERE 
  key_id = '951b27ba4813f9dfec4da4f49f3ce443b875717136dfa49a357fd4d7c7f0fd93' 
  AND (
    token = 'QnLtEGx6N0fE5PYbOv4O1YuH4CdFSURdsNgrFZuIi1o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )