INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21712813854e7eaed204e936c2ea35c12e211d1cac4541ad71bad2696dec779f', 
    'rUt+UsOWWNbKlX45+I2klVVh1QbMX3vBMtjE2ihSk6Q=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00039

Result

int(1)