{
  "manageEntity": {
    "action": "Save",
    "entityId": "286112",
    "entityType": "Track",
    "nonce": "0xd22bc286b0fca8fcb2105f368588092fce9460f681959898e7e0df1c1270d10e",
    "signature": "0x8a3cacd31360c7eed4dc7fce00f1f71a2ed450255b5ae5f1aedb820c35ece40f2b184e887a70155204602536c64d9fa6b0b5536eb8613f822cf09ade66f994351c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}