INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21b5edbe133229dba143e63730440d2e1a22f8d5995cf551f52988620c3a1c3b', 
    '8IKzB6tAwbsPJi9yjbFnr2xrdmf/JQtLmpwiV8M76Q0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00032

Result

int(1)