{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6950ea0439336205f8a62bb8a239784f1be2a309991751e85ccc83522ba12d94",
    "signature": "0x532f4bc16a4f7d527bac2a8caa621cda9e1ff8dc213ec3437b5e26b461baf3534ef37bdc38bd0866caae7c137bea05dca0704e41f3cebd1a15d3b3efe8a87b601b",
    "signer": "0x02ebd3a4b8c4CE3A606a610B27d47565F43720C8",
    "userId": "411451426"
  }
}