INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '81ccd342028ae893f37709fec1cd727f1373579155eb1971c0b76028ebd54f0f', 
    'TxXeeWEJ3VWvAuXA0MteprIdskw4eperZ1nItx0z6Ms=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00034

Result

int(1)