INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '15981aa77c085753e12f097def5c8fe3a7857bd515110b5ffd53c42e5c12d0c9', 
    '+WblT5xzCIfSEMwmoZGZ2WV0xkUa8JS10n7RgRSdtko=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00026

Result

int(1)