INSERT INTO cscart_lock_keys (key_id, token, expiry_at) 
VALUES 
  (
    'b300fc54da3d21a07fe815c775840337bfba7d1849985763c757a899a801d496', 
    '56+THczlLn0bgXept5OwRBGXJhdImYybJnKaPN738eY=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00030

Result

int(1)