INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '9321a9883bad3597685815fff37c6e6541e290a94c28be5d2bece7ac1635c433', 
    '1+MNciqHgaPoSaJG5hPwQ48vONDxqwMKlRV5HtmUz6k=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00034

Result

int(1)