Chinese character problem encountered when calling ingestProposal interface and using java emitter；
"message": "Parameters of method 'ingestProposal' failed validation with error 'ERROR :: /proposal/aspect/value :: \" {\"usName\":\"eng\",\"cnDefinition\":\"\",\"cnName\":\"中文\",\"usDefinition\":\"Test data to test whether Chinese word segmentation has a good return effect\",\"status\":\"Draft\"}\" is not a valid string representation of bytes\n'"