INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '3e76a9e503553ee3a3b7c0a3e2d6af04208bed13c15a211a10737e11576f3383', 
    'QN/KMIh03voT8kh1RmRLtrQWuZB6Eja91lukNURur1E=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00031

Result

int(1)