{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x90d9c5533b58f40cd65d6f154e613b69059481812e6b0a8790a2f6dbd7580bda",
    "signature": "0x4cdcddc7bdb394bc35ac94b39ef06bca6745e5c08769130304b3dc5201cee62541839eef2f1bbf46312075148ad75f1c89deeacdbaaccc6c4b17c120f53e5b651c",
    "signer": "0x445Dec28e440f94e8dC90F0199A30FD922028789",
    "userId": "801467656"
  }
}