INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '574f2a230533c56f94a397c80053559afa9af3b999afce5a65fd9be0b8fecfa9', 
    'iTn0YJ/in9KcstHG6KMqe6KTKj9KL28XbFFl8DF8CR0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)