INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '15304a0afddd8e01a6945f2501878bbdfb0adb71a94e5230d9adc4fe70da3f73', 
    'RCi99tUxccm221tSXtHKLnBmX5vT3ofL+vFPGjSko4E=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00021

Result

int(1)