INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'b6409ad2878c9f8f64859e4fa4aaa1603e0582597e483ed10023fa6a5e1b322f', 
    'l5OvLBA6OxtxUP06TD5QrFf6pDRVjO/E9L//Z0VzN4Y=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00018

Result

int(1)