{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6e972f34e8eb668abab88570a0a6781ae8210ace042fe528de559f39b2f784bc",
    "signature": "0x97ae981a3fdd254eb5338fd042406cea929abdbb74fdd85e470d5f63157eca6304850fafa3956649b23c5d609d685081dec55c1521d074eb0381fa26b09f33bd1c",
    "signer": "0x2fd164C245684a6CEab66e53D5Da28fef60e8bbF",
    "userId": "292249773"
  }
}