INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'd6b289d2888af6da3e359bb517bad8b65ceb7e8c15d8748767f70b59ecbcb9e5', 
    'E4iSzvDcXNemL0EC2fQLWQtbGuKGGmjizznYyB3DpgY=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00034

Result

int(1)