{
"manageEntity": {
"action": "Save",
"entityId": "1710105443",
"entityType": "Track",
"nonce": "0x5b7b71c331dce2a07b6495ddacec43bdd2b69855922cb389f61c821c411d090e",
"signature": "0x45ca1c527e08685b9f64d7a23eed27ab6855eabb29f30f7a14a626f1596b975379011ba6af2172e1b97b5bde245c8b8e570d697b4888ff679018e40263c0713c1b",
"signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
"userId": "636236864"
}
}