INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '8b338452cebf661bfa04fcd1e5e8a1a60b316b2bb20fe884bc87bb38503029ec', 
    'RU2qfPLozfnkGQcojHOWcK0SZkt6W9FFesAZJIlen5c=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)