INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '8a56674828c7a8482023de80a8d5287693fd9ff69770504cc021a985059e3471', 
    'KRs7xqN6C3AgSIWcFb8B7AR4Mol3QVSYYptbmgC2spY=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00026

Result

int(1)