INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'e546415af93253557cb4ece3dce0121045cb8a6495de45ea199a036c704fff6a', 
    'QU/u9OgfegD2xoLlngsn91yC7Zi1K6Wezjn4AzNO0no=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00021

Result

int(1)