UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'buy2jPcswDsnmZXY8p2ZlnGb51sN2Sv1lKTxEGmsNxw=' 
WHERE 
  key_id = '21acad8f84817f89f7944ce3c5a4eb96bb2b15a9a7c9124c8f6f4655f2084125' 
  AND (
    token = 'buy2jPcswDsnmZXY8p2ZlnGb51sN2Sv1lKTxEGmsNxw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )