{
  "manageEntity": {
    "action": "Save",
    "entityId": "1846834226",
    "entityType": "Track",
    "nonce": "0x20182972fa9815d56cf5f4340dab82228c10042fc12bbaf7a4dec8d69a9eac90",
    "signature": "0xa823067c08eac1f507bf125e2e19e14e76734fa16fd7acd4a5c45d1f278ca44e763ef3945a6cf0e3b32ec72b5b5c95591036076cbb67095de7eb3ca4f6d9057f1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}