{
"manageEntity": {
"action": "Save",
"entityId": "1790364531",
"entityType": "Track",
"nonce": "0xcae32a665af2c26fa37fc9937791b04510e29325edfca2cb2e025553017a3590",
"signature": "0xdebdbd84c5b8476d2b6289754acaa421de4faf54d2ea8dcca5e1cda54b59ea58678b418b90fb97317d0eed71f5f1616f90f7e50d774cdfb1cb04e556848811711b",
"signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
"userId": "728570067"
}
}