{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaf7df77f2aa9c80321847ceb5630a8f59fa70a28f8989aebee775f1261fc1455",
    "signature": "0xa6ab08db8d6d3610a94c84730940a4837d5dff7e00a8d3f7ef366ec9e5d35de65768caee261e9542f07a079a24ea059287d2b9f0b4cd544a3732f9f6209c065b1b",
    "signer": "0x9f717316449b2304d5B9FD48C557Da84C2D403BF",
    "userId": "166670222"
  }
}