Transaction not yet indexed

53NbK4Y1WU7ma8mMgAdTop2hHLPbVVFb7j3wASSApvFmPXUSD3CuM7ezQS2FsLaKkshx2NPR6rtWYLD7BbmytJvp

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