INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '6b21d6499d11905d7da4efcf255382bf0ea008445cc8953b76516a75cfee0e20', 
    'ZOSaVRYR5clVjzoh7wWnlyderVRVrjKU/t0uBGb3PcY=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)