{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9893815d388bc41ed711ef48fc6a707fdc218875d28845f1c35f8ea1da6337a7",
    "signature": "0x3361f2494749837b417de0ee21ea9742c989be4362c3b42bf740de64c761368c708436fa3c1d896a947407fddb14a859b06fae647f4cbcc54a9b312b23edbd1c1b",
    "signer": "0xAF25F268eAbA177aF0FA90eBBe33E77010ec3661",
    "userId": "803637219"
  }
}