| Column | Type | Actions |
|---|---|---|
| id | int(11) | |
| employee_id | int(11) | |
| device_number | varchar(64) | |
| public_key | text | |
| device_name | varchar(255) | |
| registered_ip | varchar(45) | |
| registered_at | datetime | |
| last_seen_at | datetime | |
| last_seen_ip | varchar(45) | |
| status | enum('pending','active','blocked','revoked') | |
| active_employee_flag | int(11) | |
| created_at | datetime | |
| updated_at | datetime |