INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21c5138fe904f543759712ea1deb7502b904b00b4570cfee4fd91c7b0783bc46', 
    'GWn638nHtjDCFGhSeEUmO+mg6hNG9NbWL1jidQurm8I=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00035

Result

int(1)