{
  "manageEntity": {
    "action": "Save",
    "entityId": "1064011665",
    "entityType": "Track",
    "nonce": "0xaca4a653eb5102d9ba31dcdcb6122e92ad6f02a771e795dce25f31d8516abe99",
    "signature": "0xad5dccf4a9642f6b2773b018d95e4f3acaee5c5675518ea71df99f62c604f4d1712335febb173810f8d0b49062e6dbd86765d376780e63a2d554a39f0a8ce0d71b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}