INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'e4e6e20daed1bd73760819b74c19e7ffb5ef5259a544e9febb8ffda5a1854d45', 
    'QUMmi6FxAKCBPcIh7hIBuK4UbCD5IxjAj1IfpVZmazs=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00059

Result

int(1)