INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '15516c6eb82304529421cb4fc4b240f1f1ef0fe2beeeebd6e41e651ad429c8b2', 
    'XQUFgSxSoY1L+oKmYBLjKy+sharSDMp3kS6hOaXNXoU=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)