INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21b64717116c518f3702b7a9f3dc13ed5efe10ce253eb1676bd6345bf64a8eb5', 
    'E6bimAigAhpwuWja3iPDYIhjWgg1JP/fPaymgN/2Ecc=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00018

Result

int(1)