INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '9991b353ec96aa0bb66b3627715c4319fcdba2f9b8012436e818b4260abf32c2', 
    'S54iS5K0AS0LjAPVIHP2C3ghhmlOx8xP2lHQ0h9vANo=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)