{
"manageEntity": {
"action": "Save",
"entityId": "2074931134",
"entityType": "Track",
"nonce": "0x75c3043e2d1cf8715cbab88346145811b6016ee833bd1f76ed6bb3053dfbdf83",
"signature": "0x4ba8fe7e48cfef31650614eb6b87a15b1f6694009bf2cb39144f9ca7b115f5152a8eabd5217ca3cd65558871f5ad52dd00ebbf2b7b46a6f12e1a2665503517c51c",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}