INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '921e348599ac8320f4ef77b8091890d4dfaddf03f5db4116f684371b39af863c', 
    '7UVhuuMw0zgywPdiKo12NZSXMvb1LnVXcDoSBlYb5mQ=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00021

Result

int(1)