INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '8b51f3a8480a9daeac74652223d5f293a830df963fbb75be2f33899e91edabbe', 
    '+4WdxwuljTkaC6nIQUXwC2qYYzjlK1tqOGUN/T8OcUQ=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00035

Result

int(1)