{
  "manageEntity": {
    "action": "Save",
    "entityId": "1711906778",
    "entityType": "Track",
    "nonce": "0xaa8851ff325497c4ab7b23cd0695c46a88fd6c98902be8ba843cb57e1676e1b0",
    "signature": "0x9c2a9da0299b0ac0e494edc4c190ea477478436500f5cd73e3da5bc24b6f7b7c0ba5947443b2aa22485b69524e8384b2a47644475d2e5f2919d4231f9eae47491c",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}