{
  "manageEntity": {
    "action": "Save",
    "entityId": "286715",
    "entityType": "Track",
    "nonce": "0xb6d95265f4b938e3937778683c0fd657af05e216165ad134556b85227bfa093b",
    "signature": "0x2110d0b11e4ab1027aa583d57bdeffa3c5e7a20d88b92f9a73dd279546a34cdd2114bf16324b85e8dab6cb1a13b6c04b83a581a44b98ccef696d47023e82468c1b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}