INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'f8c0e3621ade910219efffc04259791144b45e1374078942f673701dbeebcee9', 
    'kjR+qCxlVblx0j/P4uC71feO4TngiFGpeit5PrwOjQQ=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)