INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'b8e249058968e05192914aa0ed0ab370f138a660704549373331c0913c0cef48', 
    'MD5tJ9DVS2pHZl5O0IqRKI9hHE8QEqjadrRktzsgbUE=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)