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---
title: "User Data Stream requests | Binance Open Platform"
source: "https://developers.binance.com/docs/binance-spot-api-docs/websocket-api/user-data-stream-requests"
fetched_at: "2026-02-26T10:38:13.543Z"
---
### User Data Stream subscription[](https://developers.binance.com/docs/binance-spot-api-docs/websocket-api/user-data-stream-requests)
**General information:**
- [User Data Stream](https://developers.binance.com/docs/binance-spot-api-docs/user-data-stream) subscriptions allow you to receive all the events related to a given account on a WebSocket connection.
- There are 2 ways to start a subscription:
- If you have an authenticated session, then you can subscribe to events for that authenticated account using [`userDataStream.subscribe`](https://developers.binance.com/docs/binance-spot-api-docs/websocket-api/user-data-stream-requests).
- In any session, authenticated or not, you can subscribe to events for one or more accounts for which you can provide an API Key signature, using [`userDataStream.subscribe.signature`](https://developers.binance.com/docs/binance-spot-api-docs/websocket-api/user-data-stream-requests).
- You can have only one active subscription for a given account on a given connection.
- Subscriptions are identified by a `subscriptionId` which is returned when starting the subscription. That `subscriptionId` allows you to map the events you receive to a given subscription.
- All active subscriptions for a session can be found using [`session.subscriptions`](https://developers.binance.com/docs/binance-spot-api-docs/websocket-api/user-data-stream-requests).
- Limits
- A single session supports **up to 1,000 active subscriptions** simultaneously.
- Attempting to start a new subscription beyond this limit will result in an error.
- If your accounts are very active, we suggest not opening too many subscriptions at once, in order to not overload your connection.
- A single session can handle a maximum of **65,535 total subscriptions** over its lifetime.
- If this limit is reached, you will receive an error and must re-establish a new connection to be able to start new subscriptions.
- To verify the status of User Data Stream subscriptions, check the `userDataStream` field in [`session.status`](https://developers.binance.com/docs/binance-spot-api-docs/websocket-api/user-data-stream-requests):
- `null` - User Data Stream subscriptions are **not available** on this WebSocket API.
- `true` - There is at **least one subscription active** in this session.
- `false` - There are **no active subscriptions** in this session.
#### Subscribe to User Data Stream (USER\_STREAM)[](https://developers.binance.com/docs/binance-spot-api-docs/websocket-api/user-data-stream-requests)
```
{ "id": "d3df8a21-98ea-4fe0-8f4e-0fcea5d418b7", "method": "userDataStream.subscribe"}
```
Subscribe to the User Data Stream in the current WebSocket connection.
**Notes:**
- This method requires an authenticated WebSocket connection using Ed25519 keys. Please refer to [`session.logon`](https://developers.binance.com/docs/binance-spot-api-docs/websocket-api/authentication-requests).
- To check the subscription status, use [`session.status`](https://developers.binance.com/docs/binance-spot-api-docs/websocket-api/authentication-requests), see the `userDataStream` flag indicating you have have an active subscription.
- User Data Stream events are available in both JSON and [SBE](https://developers.binance.com/docs/binance-spot-api-docs/faqs/sbe_faq) sessions.
- Please refer to [User Data Streams](https://developers.binance.com/docs/binance-spot-api-docs/user-data-stream) for the event format details.
- For SBE, only SBE schema 2:1 or later is supported.
**Weight**: 2
**Parameters**: NONE
**Response**:
```
{ "id": "d3df8a21-98ea-4fe0-8f4e-0fcea5d418b7", "status": 200, "result": { "subscriptionId": 0 }}
```
#### Unsubscribe from User Data Stream[](https://developers.binance.com/docs/binance-spot-api-docs/websocket-api/user-data-stream-requests)
```
{ "id": "d3df8a21-98ea-4fe0-8f4e-0fcea5d418b7", "method": "userDataStream.unsubscribe"}
```
Stop listening to the User Data Stream in the current WebSocket connection.
Note that `session.logout` will only close the subscription created with `userDataStream.subscribe` but not subscriptions opened with `userDataStream.subscribe.signature`.
**Weight**: 2
**Parameters**:
Name
Type
Mandatory
Description
`subscriptionId`
INT
No
When called with no parameter, this will close all subscriptions.
When called with the `subscriptionId` parameter, this will attempt to close the subscription with that subscription id, if it exists.
**Response**:
```
{ "id": "d3df8a21-98ea-4fe0-8f4e-0fcea5d418b7", "status": 200, "result": {}}
```
#### Listing all subscriptions[](https://developers.binance.com/docs/binance-spot-api-docs/websocket-api/user-data-stream-requests)
```
{ "id": "d3df5a22-88ea-4fe0-9f4e-0fcea5d418b7", "method": "session.subscriptions", "params": {}}
```
**Note:**
- Users are expected to track on their side which subscription corresponds to which account.
**Weight**: 2
**Data Source**: Memory
**Response**:
```
{ "id": "d3df5a22-88ea-4fe0-9f4e-0fcea5d418b7", "status": 200, "result": [ { "subscriptionId": 0 }, { "subscriptionId": 1 } ]}
```
#### Subscribe to User Data Stream through signature subscription (USER\_STREAM)[](https://developers.binance.com/docs/binance-spot-api-docs/websocket-api/user-data-stream-requests)
```
{ "id": "d3df8a22-98ea-4fe0-9f4e-0fcea5d418b7", "method": "userDataStream.subscribe.signature", "params": { "apiKey": "mjcKCrJzTU6TChLsnPmgnQJJMR616J4yWvdZWDUeXkk6vL6dLyS7rcVOQlADlVjA", "timestamp": 1747385641636, "signature": "yN1vWpXb+qoZ3/dGiFs9vmpNdV7e3FxkA+BstzbezDKwObcijvk/CVkWxIwMCtCJbP270R0OempYwEpS6rDZCQ==" }}
```
**Weight:** 2
**Parameters**:
Name
Type
Mandatory
Description
`apiKey`
STRING
Yes
`timestamp`
LONG
Yes
`signature`
STRING
Yes
`recvWindow`
DECIMAL
No
The value cannot be greater than `60000`.
Supports up to three decimal places of precision (e.g., 6000.346) so that microseconds may be specified.
**Data Source:** Memory
**Response:**
```
{ "id": "d3df8a22-98ea-4fe0-9f4e-0fcea5d418b7", "status": 200, "result": { "subscriptionId": 0 }}
```
- [User Data Stream subscription](https://developers.binance.com/docs/binance-spot-api-docs/websocket-api/user-data-stream-requests)