File::extractToken

static function extractToken(string $token): array
{
	$signer = new MainSecuritySignSigner;

	try
	{
		$unsigned = $signer->unsign($token, self::TOKEN_SALT);
		$result = [$unsigned];
	}
	catch (Exception $e)
	{
		$result = [null];
	}

	return $result;
}