UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nz6JiWbM6LaCslBQjc+iMEraz1i46nyE2fYELCxtcU8=' 
WHERE 
  key_id = '5939421c9f740dd9f3a015edd62f9a876e4191b043c5da12721965844c6f4d14' 
  AND (
    token = 'nz6JiWbM6LaCslBQjc+iMEraz1i46nyE2fYELCxtcU8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )