{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x22aff2f5331be5103bcb07e17715892072349b4d5d854dd99015627a6af21b71",
    "signature": "0xde74d7fd8b8314480de47167790867f46d03296b1fb1ba5039722b01a836ba16572000665a70afbe30b4065e94b6289b2da5a445fd48f285901bfa0eacaff7eb1c",
    "signer": "0x46768b7Bf76eb7c0057D3A3dD7Ab558603AaFFbd",
    "userId": "823891201"
  }
}