INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '29bc75ada7f437558a0efe0b30abe255456a5632213705d34c299261def87efe', 
    'wlmnijn1l7sVDR6rqGFgHjWrY467+iccrZBzKe9BeEE=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)