INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '596d90d1879de1a533e8ec95b6fe589a4499e2ef509895a2d2c44427c530c78f', 
    '3ZTxNNYalXRzzUooab0SwGphdUo4DveTQgEljjeI1Xo=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)