{
  "manageEntity": {
    "action": "Save",
    "entityId": "62247",
    "entityType": "Track",
    "nonce": "0x5ea9b0baab621aea92781f341fe50595c3a17feafa583387b54c6cb67b40255a",
    "signature": "0x44c0c03b8ddcbeba43c6cb18fdc0b316d73eafe12ae13978f983a70c133387724d503af411f30b4c67346d621bd15632faf418d50ec5a88344fe8a67a095c0241c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}