### Update signature image [POST /cmd/createSignature/{userId}]

Update an army members signature image

**Permission: 4**

+ Parameters
    + userId: `5ab68d42f547ed304064e5f7` (string, required) - army members unique user id

+ Request (application/json)
    {}

+ Response 200 (application/json; charset=utf-8)

    + Attributes
        + status: `success` (string, required) - action result message