INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'c961ebfe9ade45be53730e91d3204d2d2cc5857e9c628cb2a95b1e880a5a3cd9', 
    'test2nZ2BMN4qkqgcPTx5T3EJwZOqE4+ldyzdtEntvA=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00038

Result

int(1)