diff --git a/scripts/generate-signature/package-lock.json b/scripts/generate-signature/package-lock.json
new file mode 100644
index 0000000..86de335
--- /dev/null
+++ b/scripts/generate-signature/package-lock.json
@@ -0,0 +1,929 @@
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diff --git a/scripts/generate-signature/package.json b/scripts/generate-signature/package.json
new file mode 100644
index 0000000..93be3ba
--- /dev/null
+++ b/scripts/generate-signature/package.json
@@ -0,0 +1,19 @@
+{
+  "name": "generate-signature",
+  "version": "1.0.0",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "description": "",
+  "dependencies": {
+    "@polkadot/api": "^15.5.2",
+    "@polkadot/keyring": "^13.3.1",
+    "@polkadot/types": "^15.5.2",
+    "@polkadot/util": "^13.3.1",
+    "@polkadot/wasm-crypto": "^7.4.1"
+  }
+}