{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x93af96b746d0ae364200cd6bedacae682363e3cefd37ca0b18012d4a5574562a",
    "signature": "0x2484585e7a83c90bb4cd5797a3b85404754868f39d4f8d4e17ce1139057b47f56345c5cceece43ebfa895ebc317c0d7a655c0c2fe7e82eb9e25bc1cc3d2ad81d1b",
    "signer": "0xe8533DD8DC48B11EC063191b0ab1C7CBD9C17662",
    "userId": "318238731"
  }
}