INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '256757b621c2edb645fe21b2f24ce3236ec5f7370c2f8896d151eb982982aafd', 
    'hMKy6xgsMhaYVVLJ3sQpNGy2YA2/PdKB4jWEXJ6iBaY=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00034

Result

int(1)