INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'a4ab6856633ece6d2410c89101677693e861a4eddd050a08a945e8691aa73f52', 
    'TUAVbM63ruNGtPc2u4jycJ1K2/GN4JIKDhpbn0dgYzw=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00029

Result

int(1)