INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '755639c280e8ee46163ec59dd5c3a816f195aa28d35a50c9f783419724ea8c9c', 
    'VVILTW7dxToQq811iJkXC04HgxfOXyZIolAfL4KpChM=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)