INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '51f2ad3a6fda7de048fd3366c8e4c2a7fd8273968f0c0965176c617684b9f5e7', 
    'sLDj2x2tMcqySAbNTj8gZkPdyjBp/WzLygATFux74sA=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)