INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '1503e55ca2a134cff2a8ae3feb32ee760732f057139cbe35f8a62b3da15601b9', 
    'uXukStXAQHHyrWo3o/EUJb3+xtQul2LPmPteq46AvKI=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00055

Result

int(1)