{
  "manageEntity": {
    "action": "Save",
    "entityId": "1958028304",
    "entityType": "Track",
    "nonce": "0x17cd5ff5fe7c7bd76700b147c5a0db0eb8e0f3dc0585b8483db623298ae8d8b7",
    "signature": "0x3524fc7ef416efde8e56094cf8fc79eb272f1ca2c563623ddf34fae8c99652f750614d4e5b8688a6093d12ae8a2ffb642470f2bbb87fb198590b8a1d871f41421b",
    "signer": "0x4B8960b62360073E2472A74bfbd80138387fE211",
    "userId": "86339"
  }
}