INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21d7f8853d23a6d672f831a6a4b3d5aac36f6a096461afb7ff066098ecf0d07b', 
    'n2a9tmnMpmQjVLEBhEg1mcmEVo6syx2zPnIWTRrOtGY=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00041

Result

int(1)