Transaction not yet indexed

53UCAafpAx6hXCvMCaxTrZUDtyC8HVPHFde3c3nLcPmsZLyvufrXWRNJSBqbouzYJnsc3Hv5YV21Zzs5B4HpzQF8

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