INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '0b5a2a71d1591e1441a7a15c854feb49c9811e2efc2bdf948e6e83d74e5740bd', 
    'a3MEKDPUJJB5+zYChxgLR9XpDl3QgJK019BqUvX8izk=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00022

Result

int(1)