diff --git a/src/pages/sign/MarkFormField.tsx b/src/pages/sign/MarkFormField.tsx
index c843045..4de82a4 100644
--- a/src/pages/sign/MarkFormField.tsx
+++ b/src/pages/sign/MarkFormField.tsx
@@ -1,4 +1,4 @@
-import { CurrentUserMark, Mark } from '../../types/mark.ts'
+import { CurrentUserMark } from '../../types/mark.ts'
 import styles from './style.module.scss'
 import { Box, Button, TextField } from '@mui/material'
 
@@ -13,8 +13,6 @@ interface MarkFormFieldProps {
 
 /**
  * Responsible for rendering a form field connected to a mark and keeping track of its value.
- * @param props
- * @constructor
  */
 const MarkFormField = (props: MarkFormFieldProps) => {
   const { handleSubmit, handleChange, selectedMark, selectedMarkValue } = props;
diff --git a/src/pages/sign/index.tsx b/src/pages/sign/index.tsx
index 02631dc..e0ef228 100644
--- a/src/pages/sign/index.tsx
+++ b/src/pages/sign/index.tsx
@@ -337,15 +337,13 @@ export const SignPage = () => {
 
     if (!keysFileContent) return null
 
-    const parsedJSON = await parseJson<{ sender: string; keys: string[] }>(
+    return await parseJson<{ sender: string; keys: string[] }>(
       keysFileContent
     ).catch((err) => {
       console.log(`Error parsing content of keys.json:`, err)
       toast.error(err.message || `Error parsing content of keys.json`)
       return null
     })
-
-    return parsedJSON
   }
 
   const decrypt = async (file: File) => {
@@ -603,15 +601,13 @@ export const SignPage = () => {
 
     if (!arraybuffer) return null
 
-    const finalZipFile = new File(
+    return new File(
       [new Blob([arraybuffer])],
       `${unixNow}.sigit.zip`,
       {
         type: 'application/zip'
       }
     )
-
-    return finalZipFile
   }
 
   // Handle errors during zip file generation
diff --git a/src/types/mark.ts b/src/types/mark.ts
index 5381298..8be57ac 100644
--- a/src/types/mark.ts
+++ b/src/types/mark.ts
@@ -15,40 +15,6 @@ export interface Mark {
   value?: string;
 }
 
-export interface MarkConfig {
-  /**
-   * @key user npub
-   */
-  [key: string]: User
-}
-
-export interface User {
-  /**
-   * @key png (pdf page) file hash
-   */
-  [key: string]: MarkConfigDetails[]
-}
-
-export interface MarkDetails {
-  /**
-   * @key coords in format X:10;Y:50
-   */
-  [key: string]: MarkValue
-}
-
-export interface MarkValue {
-  value: string
-}
-
-export interface MarkConfigDetails {
-  type: MarkType;
-  /**
-   * Coordinates in format: X:10;Y:50
-   */
-  location: MarkLocation;
-  value?: MarkValue
-}
-
 export interface MarkLocation {
   top: number;
   left: number;
diff --git a/src/utils/index.ts b/src/utils/index.ts
index f65fb79..1b0c133 100644
--- a/src/utils/index.ts
+++ b/src/utils/index.ts
@@ -6,4 +6,4 @@ export * from './nostr'
 export * from './string'
 export * from './zip'
 export * from './utils'
-export { extractMarksFromSignedMeta } from './mark.ts'
+export * from './mark'
diff --git a/src/utils/mark.ts b/src/utils/mark.ts
index 59860ce..13cff84 100644
--- a/src/utils/mark.ts
+++ b/src/utils/mark.ts
@@ -85,7 +85,7 @@ const updateCurrentUserMarks = (currentUserMarks: CurrentUserMark[], markToUpdat
   ]
 }
 
-const isLast = (index: number, arr: any[]) => (index === (arr.length -1))
+const isLast = <T>(index: number, arr: T[]) => (index === (arr.length -1))
 
 export {
   getCurrentUserMarks,
diff --git a/src/utils/misc.ts b/src/utils/misc.ts
index e6f5058..728408c 100644
--- a/src/utils/misc.ts
+++ b/src/utils/misc.ts
@@ -12,11 +12,10 @@ import { toast } from 'react-toastify'
 import { NostrController } from '../controllers'
 import { AuthState } from '../store/auth/types'
 import store from '../store/store'
-import { CreateSignatureEventContent, Meta, SignedEventContent } from '../types'
+import { CreateSignatureEventContent, Meta } from '../types'
 import { hexToNpub, now } from './nostr'
 import { parseJson } from './string'
 import { hexToBytes } from '@noble/hashes/utils'
-import { Mark } from '../types/mark.ts'
 
 /**
  * Uploads a file to a file storage service.
@@ -84,14 +83,12 @@ export const signEventForMetaFile = async (
   }
 
   // Sign the event
-  const signedEvent = await nostrController.signEvent(event).catch((err) => {
+  return await nostrController.signEvent(event).catch((err) => {
     console.error(err)
     toast.error(err.message || 'Error occurred in signing nostr event')
     setIsLoading(false) // Set loading state to false
     return null
   })
-
-  return signedEvent // Return the signed event
 }
 
 /**
@@ -265,10 +262,3 @@ export const extractZipUrlAndEncryptionKey = async (meta: Meta) => {
 
   return null
 }
-
-export const extractMarksFromSignedMeta = (meta: Meta): Mark[] => {
-  return Object.values(meta.docSignatures)
-    .map((val: string) => JSON.parse(val as string))
-    .map((val: Event) => JSON.parse(val.content))
-    .flatMap((val: SignedEventContent) => val.marks);
-}
diff --git a/src/utils/zip.ts b/src/utils/zip.ts
index c289cbe..2d33aa5 100644
--- a/src/utils/zip.ts
+++ b/src/utils/zip.ts
@@ -22,8 +22,9 @@ const readContentOfZipEntry = async <T extends OutputType>(
     return null
   }
 
-  // Read the content of the zip entry asynchronously
-  const fileContent = await zipEntry.async(outputType).catch((err) => {
+  // Read and return the content of the zip entry asynchronously
+  // or null if an error has occurred
+  return await zipEntry.async(outputType).catch((err) => {
     // Handle any errors that occur during the read operation
     console.log(`Error reading content of ${filePath}:`, err)
     toast.error(
@@ -31,9 +32,6 @@ const readContentOfZipEntry = async <T extends OutputType>(
     )
     return null
   })
-
-  // Return the file content or null if an error occurred
-  return fileContent
 }
 
 const loadZip = async (data: InputFileFormat): Promise<JSZip | null> => {