INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'b3dfe7a515cb319e41265bc49e03aabbb3e61af4500a840b60706a659645af38', 
    '6sFyNCV2tlngEgyoLiJNiCEW/V5HpbYByK0iofwFpxY=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00032

Result

int(1)