INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'a91d6aa9860542f0e5bd29832185d6f7a1e595b15a42d7b217198eafb7a35b48', 
    'tCpif/q+FnhDJeUIxqnPokK8f7Vjscn8T86Ludtp1IE=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00210

Result

int(1)