INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51e9fcb93d1208a71dd091de5d659bda2ae02910c4c2576afac95fec32dee53e', 
    '7J9wAxHIc7py9B4cXnOEKoXpEnNUQrskdDCjbzDQwNo=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00024

Result

int(1)