INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '4e38629e253abf1d3c60974947de4def399f15b48d0681359e3d34a5eefeecbb', 
    '+EDeSeYyBcpwKxaAP/DQMXwFej9MvedXnExJB9dc0nc=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)