diff --git a/projects/cobbler-api/src/lib/cobbler-api.service.spec.ts b/projects/cobbler-api/src/lib/cobbler-api.service.spec.ts
index 1c413839..8016501f 100644
--- a/projects/cobbler-api/src/lib/cobbler-api.service.spec.ts
+++ b/projects/cobbler-api/src/lib/cobbler-api.service.spec.ts
@@ -133,9 +133,15 @@ describe('CobblerApiService', () => {
     expect(service).toBeFalsy();
   });
 
-  xit('should execute the background_signature_update action on the Cobbler Server', () => {
-    service.background_signature_update('');
-    expect(service).toBeFalsy();
+  it('should execute the background_signature_update action on the Cobbler Server', () => {
+    // eslint-disable-next-line max-len
+    const methodResponse = `<?xml version='1.0'?><methodResponse><params><param><value><string>2022-09-30_195846_Updating Signatures_6c5300d51c224984b4319fb536cc21d0</string></value></param></params></methodResponse>`
+    const result = "2022-09-30_195846_Updating Signatures_6c5300d51c224984b4319fb536cc21d0"
+    service.background_signature_update('').subscribe(value => {
+      expect(value).toEqual(result)
+    });
+    const mockRequest = httpTestingController.expectOne('http://localhost/cobbler_api');
+    mockRequest.flush(methodResponse);
   });
 
   it('should execute the get_events action on the Cobbler Server', () => {
diff --git a/projects/cobbler-api/src/lib/cobbler-api.service.ts b/projects/cobbler-api/src/lib/cobbler-api.service.ts
index 41bd9865..e13cfab5 100644
--- a/projects/cobbler-api/src/lib/cobbler-api.service.ts
+++ b/projects/cobbler-api/src/lib/cobbler-api.service.ts
@@ -21,6 +21,7 @@ import {
   SyncSystemsOptions,
   Version
 } from './custom-types/misc';
+import {DistroSignatures} from "./custom-types/signatures";
 
 // TODO: Investigate on server side to build and receive well known interfaces, not just plain objects.
 
@@ -307,8 +308,9 @@ export class CobblerApiService {
   }
 
   background_signature_update(token: string): Observable<string> {
+    const signatureUpdateOptions: XmlRpcStruct = {members: []}
     return this.client
-      .methodCall('background_signature_update', [token])
+      .methodCall('background_signature_update', [signatureUpdateOptions, token])
       .pipe(
         map<MethodResponse | MethodFault, string>((data: MethodResponse | MethodFault) => {
           if (AngularXmlrpcService.instanceOfMethodResponse(data)) {
@@ -2128,17 +2130,54 @@ export class CobblerApiService {
       );
   }
 
-  get_signatures(token: string): Observable<object> {
+  get_signatures(token: string): Observable<DistroSignatures> {
     return this.client
       .methodCall('get_signatures', [token])
       .pipe(
-        map<MethodResponse | MethodFault, object>((data: MethodResponse | MethodFault) => {
+        map<MethodResponse | MethodFault, XmlRpcStruct>((data: MethodResponse | MethodFault) => {
           if (AngularXmlrpcService.instanceOfMethodResponse(data)) {
-            return data.value as object;
+            return data.value as XmlRpcStruct;
           } else if (AngularXmlrpcService.instanceOfMethodFault(data)) {
             throw new Error('Getting the signatures failed with code "' + data.faultCode + '" and error message "'
               + data.faultString + '"');
           }
+        }),
+        map<XmlRpcStruct, DistroSignatures>(value => {
+          let result: DistroSignatures = {breeds: {}}
+          value.members.forEach(breedStruct => {
+            const osBreedStruct = breedStruct.value
+            if (!AngularXmlrpcService.instanceOfXmlRpcStruct(osBreedStruct)) {
+              throw new Error("Expected to receive XmlRpcStruct!")
+            }
+            const osBreedArray = osBreedStruct.members
+            osBreedArray.forEach(osBreedObject => {
+              const osBreedName = osBreedObject.name
+              result.breeds[osBreedName] = {}
+              const osVersionArray = osBreedObject.value
+              if (!AngularXmlrpcService.instanceOfXmlRpcStruct(osVersionArray)) {
+                throw new Error("Expected to receive XmlRpcStruct!")
+              }
+              osVersionArray.members.forEach(osVersionStruct => {
+                const osVersionValueStruct = osVersionStruct.value
+                const osVersionName = osVersionStruct.name
+                if (!AngularXmlrpcService.instanceOfXmlRpcStruct(osVersionValueStruct)) {
+                  throw new Error("Expected to receive XmlRpcStruct!")
+                }
+                // @ts-ignore - Due to this being dynamically filled
+                result.breeds[osBreedName][osVersionName] = {}
+                osVersionValueStruct.members.forEach(osVersionAttribute => {
+                  const attributeName = osVersionAttribute.name
+                  const attributeValue = osVersionAttribute.value
+                  if (AngularXmlrpcService.instanceOfXmlRpcArray(attributeValue)) {
+                    result.breeds[osBreedName][osVersionName][attributeName] = attributeValue.data
+                  } else {
+                    result.breeds[osBreedName][osVersionName][attributeName] = attributeValue
+                  }
+                })
+              })
+            })
+          })
+          return result
         })
       );
   }
diff --git a/projects/cobbler-api/src/lib/custom-types/signatures.ts b/projects/cobbler-api/src/lib/custom-types/signatures.ts
new file mode 100644
index 00000000..106b696f
--- /dev/null
+++ b/projects/cobbler-api/src/lib/custom-types/signatures.ts
@@ -0,0 +1,70 @@
+export interface DistroSignatureOsVersion {
+  signatures: string[]
+  version_file: string | null
+  version_file_regex?: string | null
+  kernel_arch: string
+  kernel_arch_regex?: string | null
+  supported_arches: (
+    | "arm"
+    | "ARM64"
+    | "armhfp"
+    | "aarch64"
+    | "i386"
+    | "i586"
+    | "ia64"
+    | "ppc"
+    | "ppc64"
+    | "ppc64le"
+    | "ppc64el"
+    | "s390"
+    | "s390x"
+    | "x86_64"
+    | "amd64"
+    | "AMD64"
+    | "x86"
+    )[]
+  supported_repo_breeds: ("rsync" | "rhn" | "yum" | "apt")[]
+  kernel_file: string
+  initrd_file: string
+  isolinux_ok?: boolean
+  default_autoinstall: string
+  kernel_options: string
+  kernel_options_post: string
+  template_files?: string
+  boot_files?: string[]
+  boot_loaders?: {
+    arm?: ("pxe" | "ipxe" | "grub")[]
+    armhfp?: ("pxe" | "ipxe" | "grub")[]
+    aarch64?: ("pxe" | "ipxe" | "grub")[]
+    i386?: ("pxe" | "ipxe" | "grub")[]
+    ia64?: ("pxe" | "ipxe" | "grub")[]
+    ppc?: ("pxe" | "ipxe" | "grub")[]
+    ppc64?: ("pxe" | "ipxe" | "grub")[]
+    ppc64le?: ("pxe" | "ipxe" | "grub")[]
+    s390?: ("pxe" | "ipxe" | "grub")[]
+    s390x?: ("pxe" | "ipxe" | "grub")[]
+    x86_64?: ("pxe" | "ipxe" | "grub")[]
+    [k: string]: unknown
+  }
+}
+
+/**
+ * The different distributions supported by Cobbler. This schema is valid for Cobbler with major version 3.
+ *
+ * Generated via: https://transform.tools/json-schema-to-typescript
+ */
+export interface DistroSignatures {
+  breeds: {
+    /**
+     * This interface was referenced by `undefined`'s JSON-Schema definition
+     * via the `patternProperty` "redhat|debian|ubuntu|suse|vmware|freebsd|xen|unix|windows|powerkvm|generic".
+     */
+    [k: string]: {
+      /**
+       * This interface was referenced by `undefined`'s JSON-Schema definition
+       * via the `patternProperty` "^[a-zA-Z0-9]*$".
+       */
+      [k: string]: DistroSignatureOsVersion
+    }
+  }
+}
diff --git a/projects/cobbler-api/src/public-api.ts b/projects/cobbler-api/src/public-api.ts
index 9f9ff312..0e1953b7 100644
--- a/projects/cobbler-api/src/public-api.ts
+++ b/projects/cobbler-api/src/public-api.ts
@@ -6,4 +6,5 @@ export * from './lib/cobbler-api.service';
 export * from './lib/lib.config';
 export * from './lib/custom-types/items';
 export * from './lib/custom-types/settings';
+export * from './lib/custom-types/signatures';
 export * from './lib/custom-types/misc';