INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '535e4f208df1eafc2ae1610d1262d0fd1f079926bc9823bedb99f51fa30626db', 
    '/9LDmIrfpjuj3s8uz1zxwrwMFAEUoZClJJ7BABx1FMM=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)