{
"manageEntity": {
"action": "Save",
"entityId": "1127014369",
"entityType": "Track",
"nonce": "0xcba9daad19c20fb980f641b7f13e2c7cd94a9af21928fb10a5374d7e43cbef99",
"signature": "0x73d5b466246235ce61002174e05f392a541f372da55e336c0a69f1d62c4711b4398530e2f0fe8d80866e2465f9f35c77441b529229bb6967ec16bee91ff9bd3f1c",
"signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
"userId": "636236864"
}
}