{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x91704021efdc93a788ce43e59d567c6cbe6a4984f540d921a9e4633278d31ae2",
    "signature": "0x5c735a8cd0acdba68140717aff9983211ed9085da7d496a2a41109ce38d3e68f21bbb9917b5d0832aed06db206b0fc8c962dffe8267cde58159dcd771c041d671b",
    "signer": "0x17C8533175eEaa722722C320c19e2461180D99Fc",
    "userId": "212435414"
  }
}