get https://api.sendios.io/v3/project//subscription/sms/
API endpoint to check if the user is unsubscribed from receiving SMS. In case of a positive response, it returns the corresponding information.
| Response params | Description |
|---|---|
| project_id | Project identifier; |
| client_user_id | User identifier on the client's side; |
| source_id | Unsubscribe reason; |
| source | Detailed information on the unsubscribe reason; |
| created_at | Unsubscribe date. |