INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'b50491d996d0ed12d7b64a6e27f9b7e47e518d7f324c1631c439f7c0119a989b', 
    'rCff1o/icEpBrb5RjOjxpXcmsj7DpDaEmw8y8zTTEXw=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00036

Result

int(1)