{
"manageEntity": {
"action": "Save",
"entityId": "1970146585",
"entityType": "Track",
"nonce": "0x0984a333d58c62fdc30a374699ce9ad04e291a0dffbacdbd7f7ebe63a084ef67",
"signature": "0x5d2c7afebb53db5ab9e20621c7263cde58903d931954b6690813d31fcba1fc40339e4fa39aa149cdc31fb9318a2d352bd2a894ffe71874da10eb43d914bf9bb91c",
"signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
"userId": "489165782"
}
}