{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0x2cf172f672b3d489fb291f7807cd88aeb2435e4cf5364a67e0f199e78b5ec9b3",
    "signature": "0xf09634d54c544d803c84e117525af8ececd7305c8135a417642a47f2c35ed649499d22a43403e8b1cf2446ee6948b1faff0489a2d00f1dc1f563808dc07322311c",
    "signer": "0xe1002Eb10C879A84b56ba38888C0FF7cF6E33602",
    "userId": "91113"
  }
}