# accountSubscribe

Subscribe to an account to receive notifications when the lamports or data for a given account public key changes.

#### Parameters required for this RPC call

* the **account address (pubkey)**, as base-58 encoded string
* **configuration object**: This contains the following parameters, all are optional fields.
  * **commitment**: The commitment describes how finalized a block is at that point in time. Commitment levels <mark style="color:yellow;">processed</mark>, <mark style="color:yellow;">confirmed</mark> and <mark style="color:yellow;">finalized</mark> are supported, defaults to <mark style="color:yellow;">finalized</mark>.
  * **encoding**: Encoding format for Account data

    * `base58` is slow.
    * `jsonParsed` encoding attempts to use program-specific state parsers to return more human-readable and explicit account state data
    * If `jsonParsed` is requested but a parser cannot be found, the field falls back to binary encoding, detectable when the `data` field is type `string`.
    * Supports: `base58`
      , `base64`
      , `base64+zstd`
      , `jsonParsed`

{% tabs %}
{% tab title="Websocket" %}

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "accountSubscribe",
  "params": [
    "CM78CPUeXjn8o3yroDHxUtKsZZgoy4GPkPPXfouKNH12",
    {
      "encoding": "jsonParsed",
      "commitment": "finalized"
    }
  ]
}
```

{% endtab %}

{% tab title="Response" %}

```json
{
  "jsonrpc": "2.0",
  "result": 23784,
  "id": 1
}
```

{% endtab %}
{% endtabs %}

{% tabs %}
{% tab title="Base58 " %}

```json
{
  "jsonrpc": "2.0",
  "method": "accountNotification",
  "params": {
    "result": {
      "context": {
        "slot": 5199307
      },
      "value": {
        "data": [
          "11116bv5nS2h3y12kD1yUKeMZvGcKLSjQgX6BeV7u1FrjeJcKfsHPXHRDEHrBesJhZyqnnq9qJeUuF7WHxiuLuL5twc38w2TXNLxnDbjmuR",
          "base58"
        ],
        "executable": false,
        "lamports": 33594,
        "owner": "11111111111111111111111111111111",
        "rentEpoch": 635,
        "space": 80
      }
    },
    "subscription": 23784
  }
}
```

{% endtab %}

{% tab title="Parsed-JSON encoding" %}

```
{
  "jsonrpc": "2.0",
  "method": "accountNotification",
  "params": {
    "result": {
      "context": {
        "slot": 5199307
      },
      "value": {
        "data": {
          "program": "nonce",
          "parsed": {
            "type": "initialized",
            "info": {
              "authority": "Bbqg1M4YVVfbhEzwA9SpC9FhsaG83YMTYoR4a8oTDLX",
              "blockhash": "LUaQTmM7WbMRiATdMMHaRGakPtCkc2GHtH57STKXs6k",
              "feeCalculator": {
                "lamportsPerSignature": 5000
              }
            }
          }
        },
        "executable": false,
        "lamports": 33594,
        "owner": "11111111111111111111111111111111",
        "rentEpoch": 635,
        "space": 80
      }
    },
    "subscription": 23784
  }
}
```

{% endtab %}
{% endtabs %}