INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '21841e73567a4e1e36fed009dcc1fe3e31160b653a178d01a39d877f2a90f0b4', 
    '3+ny+o3fFSwDoXCKWhWlmG1Y2berYSMHhb1z6l4YMvw=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00033

Result

int(1)