# personal\_sign

Presents a plain text signature challenge to the user and returns the signed response. Equivalent to `eth_sign` on some other wallets, and prepends a safe prefix to the signed message to prevent the challenge tricking users into signing a financial transaction. This method requires that the user has granted permission to interact with their account first, so make sure to call `eth_requestAccounts` (recommended) first.

## Params

#### 1. challenge *(required)*

A hex-encoded UTF-8 string to present to the user. See how to encode a string like this in the [`browser-string-hexer`](https://github.com/danfinlay/browser-string-hexer) module.

string

Match pattern:^0x\[a-fA-F\d]+$

#### 2. address *(required)*

The address of the requested signing account.

string

Match pattern:^0x\[0-9a-fA-F]{40}$

## Example

### Request

```javascript
await window.NEOLineNeoX.request({
  "method": "personal_sign",
  "params": [
    "0x68656c6c6f",
    "0xE45e9AdC2B51514849ea5B38dF37d1a65e6D52f5"
  ]
});
```

### Result

```javascript
"0xcdd4ca6ce68fe94c4fe4a6d222b18cf7dc5909ce0be003aa72b4db9eaa2ccd307a3bf3450b741195d3e6d51e04db7c2e53a9a076f7da4e355a53e349afdaec111c"
```