{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x10ad6de0976a2b97a016f1b0c2a29c59a8cd246ae3f7b646cc06b454a6103243",
    "signature": "0x102889e4fb26bce1f60bbf90d85e2182b58f11006f8fbfe89fc25aa4e089226261ca356f2d1abf8d4914e7fe6065b92b9ebcb65e639af906468b8b5d18c2ced61c",
    "signer": "0xF6F9F433Ab5dDe3c96D63C2fFAa64b610599a410",
    "userId": "80682"
  }
}