INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '503939bfc7b179909fcefe445e68e6a9f5e4222ce5e629c7b3997068b11ffc4e', 
    'L8hd4GQCiATByyvzaywGsn7edACF53o4NPlECjpqkp8=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)