INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '16df43e518b179398e2f6048a60bd0a28ac8b84f06f3899c648313f0346313fe', 
    'otmQq3j86H4PcUuuwbCv9R3YCSSSBGi3iO5JJk253+E=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00024

Result

int(1)