INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '3401f2f370f546e8bfbc5d674182328910df96f2a91f577389a7c71bda859de5', 
    '8IzcFrrA9sv0bI1o9wWnBI/O37civFQ2GWDr7xczXqg=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)