{
  "error": "Failed to parse transaction.",
  "transaction": "0x250284d43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d01022f4deae1532ddd0",
  "cause": "createType(ExtrinsicV4):: Struct: failed on 'signature':: Struct: cannot decode type Type with value \"0x250284d43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d01022f4deae1532ddd0\"",
  "stack": "Error: createType(ExtrinsicV4):: Struct: failed ... this is a unit test mock"
}
