INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51981ab9acbb545f71b9f6537d429aab0a17190126b31280c2e4229a30cc40d0', 
    'q+f1qDEXbXiXPHyHOBE575ZaOet20PJU3FRYZDF34P0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)