INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '303c24503df3b719636d14580f2503d2a21a741ee213f790c8e799d72a469afd', 
    'dGj8JYAnUXjWLeau1eXoTRBVH0ogQyjOADysUXn1gGQ=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)