INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '75847f843c8b279a47c1e3301af529a1056d6d3c00fdcb1e6e52a1060b87a38f', 
    'Zh7AyZLYLrfNgjG9T3WeGM42ocV0yWKUUu0wbvEOao0=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)