{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8317f7211d7dcdda58ad5d0a8e656bde648e0d115f68f10a5d4d642d67bc6d60",
    "signature": "0x1cf73e3b0266eed5f86afd98119db38c07481cd711e3bfd9736165bd2704915512f8eaa218b8af16106bfe0ae27afdc819bf02f5ebfd1982b8ba4d58143270471b",
    "signer": "0x3Dd2956fCa8DED35ad018D6452b8a5e8eae6EfB0",
    "userId": "983263985"
  }
}