{
"manageEntity": {
"action": "Save",
"entityId": "2141325021",
"entityType": "Track",
"nonce": "0x363966b8c66e4addf55c790764a305850a42a77c725f8cbf8e2ccd5c84040a3b",
"signature": "0xfe2b1706dc6e69d3f8e03bb23adbc3d094e485ca2b5d4dbcb9cf27eb3d85e4466290aec36d96c362470ffb4d6fafb6e82d9c729d227515412a46da860de61a3a1c",
"signer": "0x6245d270201FE6e26477efA986E8C4035bF65C71",
"userId": "36222594"
}
}