INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '540993e2758c2fde9d0950ce77561afe209d229a627ed74989daf433d1f15981', 
    'M/3TAjnKaccwXPGkMWLyUXXUgGTFnlY6aR04oyQk97I=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00017

Result

int(1)