{
  "manageEntity": {
    "action": "Save",
    "entityId": "31042715",
    "entityType": "Track",
    "nonce": "0x696a5a53c701bcffc9618179ef4a7e39da30ee9d7dae4a4341d376c1b53aee36",
    "signature": "0x8c0df2ff357ee9e7efd6e09387b727a7faf399bc0aba131e78cf1ac07f021fe5746527b94ef2fc9652c92ab46eb096c8dc37a33dc41d1f1eca0bdc46337bdec61c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}