INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51512de54a693c272166c72547b7a578e9d9457ce5c041acf07b9a5219acf56c', 
    'mlyxCcU69DBdHcipN6QSKWHhEkDjzGcXh2yJcS11Xyo=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)