{
  "manageEntity": {
    "action": "Save",
    "entityId": "1033261792",
    "entityType": "Track",
    "nonce": "0xb3bc3a99490c8f2b0e405d614dee166a86c9f2b7c34160b5805a4bf0133efdce",
    "signature": "0x63dd61d37045e59274b5200b5490fe639da8e486f564cf634002ea4371c0c0032b7cc7db1fa58c6c5a38f4c8ab81aa9c6f8a7331eccd81e63e85d0349fbbbe3b1b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}