INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '5520748bad6709763a23aa472ebaa9383bccec19ccdaf2d048e001b632f41fe4', 
    '+iC42eaLpnpByPATEljMJUFQT8YIttOfk0l2arksIrc=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00020

Result

int(1)