{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd1a738490eb0d78207778e8624fea479c89e066c10e0260337dfc1f305be9ff3",
    "signature": "0xf459b4e2e7399383dcdc14fac65ea509218b28553dcf6f0ab58e0e024e7b7d246ecc9ad76cf21a8675e5b1b0a9833ce51dd27ea4515615e818af3de790c72b9e1c",
    "signer": "0x414134f68b0F7E5c9417768C410ae55BCe933D3d",
    "userId": "80858684"
  }
}