INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21ff2aac6cd798164710624d6c97b240f8d25fbb78b154adcb9493a335bde88b', 
    'XaJoFgpDzNeXCooBWToR8xj6QzpLCIzbOyB2qY+4Akc=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)