INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '76a661b3ca39de35288a17b50504c8ab81f9e1b9cda7b6ee445fea12ebf3483c', 
    'pEK3uG20aQABKHlvEXY473mqAy7tYZxwWoix1KTeAgs=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00034

Result

int(1)