UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n79D3wyCZUTpJuaJLWxFKgXLhVbbZDEy6MDyDj/pe+8=' 
WHERE 
  key_id = '4f9f50abe08d98bf9bea8ca683fc93183b8b0dd8988f75c83368915890ffa988' 
  AND (
    token = 'n79D3wyCZUTpJuaJLWxFKgXLhVbbZDEy6MDyDj/pe+8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )