INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '8b3ed3c634644bd378e00a52d22386960748acbe66c467a9e1d718f60845d502', 
    'gDq9vzAyoItjzb9eeEbFEj4W8FlbFexjz74kATO00ag=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00036

Result

int(1)