{
  "manageEntity": {
    "action": "Save",
    "entityId": "1276261347",
    "entityType": "Track",
    "nonce": "0xfb4fd7c1e27f41d16b3bad69c3fdada925e84fc0388c325ff8b2a89b1089769b",
    "signature": "0x396ca5491c11f96a79ce3cf8ab9b7538f421a46e5d52bcc703774c4ce6b41b3d0f0497de63d491dd03415e6d1e6b0468133ee5ccbe9cd4f0765a6f3a177170bc1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}