Transaction not yet indexed

553MM7DmzMScLmLTDqCy5wbUK7dC7b4TK6GE8ycfxqYYb1v4VXnoFpdTA7stSWTcA8ypA4AgMps7EaeLvyJb5kU1

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.