{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9aae78169a4a9a2436671a41017b631dc05b9eef55c03892c063af28789b1199",
    "signature": "0xed85c1c154f2791db8b94f7cdbd5b5c2f6c7c67d042f8d483132e41a3a3bf9ce7c54c02b206561edb4a0ddafe1a859a7b7fab3c39d082dbb60a4379b824f696a1c",
    "signer": "0x5361D103624D760e2031610e4A4126859064e786",
    "userId": "196497618"
  }
}