{
"manageEntity": {
"action": "Save",
"entityId": "1731174032",
"entityType": "Track",
"nonce": "0x917e38ab13c15cc4936d541f074d00740df7c396b0f2ea3f7db34f323ae25b89",
"signature": "0x7bf77e6fcbc89c14d355048f4839acaca09bbad43b9654c481f4211ebeb206200898fa3a11dfb7c404e378b0cbf1477b34e45fd629a9e43420669c2cf524eae31c",
"signer": "0xaBca4973b8911Fb110a95E6e00e5BBFBCa671473",
"userId": "832058678"
}
}