{
  'Entity B' => {
                'Boss' => 'Name',
                'unitnumber' => '2',
                'contactinfo' => {
                                 'URL' => undef,
                                 'email' => undef,
                                 'Telefon' => {
                                              'telnumber' => '456',
                                              'directcall' => '78910',
                                              'code' => '0999'
                                            },
                                 'Address' => {
                                              'zip' => '11111',
                                              'Street' => 'SomeOtherStreet',
                                              'Ort' => 'City',
                                              'Building' => '2'
                                            },
                                 'Fax' => {
                                          'telnumber' => '456',
                                          'directcall' => '10987',
                                          'code' => '0999'
                                        }
                               },
                'products' => {
                              'E5722' => 'few',
                              'C8099' => '522',
                              'F3596' => 'few',
                              'B0765' => '988',
                              'A1136' => '1982',
                              'D3938' => 'few'
                            }
              },
  'Entity A' => {
                'Boss' => 'Name',
                'unitnumber' => '1',
                'contactinfo' => {
...