INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51ca4cb875dbeb3dad5657b610f7aa4b9b520bd2ab152018847937e22d6f21a1', 
    'whLbZIt/s1YeM35p6WiTegBImNR2X4VQgs5GdV1ziR4=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00028

Result

int(1)