INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21ef28a1ccf2fb0cb18c4ed678e3f8ec75c27eebc081c4b01cce4424cb27d6e2', 
    '5peutYxXEoQ27hBVnigkfxThx32jqLI1j9FVNobuhJw=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)