INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '4c9da681d94b4e9bb2ada280c78f174cfa4ca9f8e52a8f15476248b141b08592', 
    'KjzDo2O4sMzNl7yZY6V5pR24uCRnSQvxDyE1gPlIpFY=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00041

Result

int(1)