INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '991ccc204ff5e35b40bf8adf93e7569d67dd89303c0fd9595667faeb2296972c', 
    '3RndgDBo4zX7vwzUZaQfDH22rqPCs90dSkP+jwLr9pY=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)