{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x747a95094d891d0175fb23d3221cd3db40cd03dfadc719a4b4995072e6a5ad0b",
    "signature": "0xfea0763fdafa452a7168a4c99ccb3eb03c0d382e8c63f901a74a1b6766e3b44863dc84e860fd3e8885761312a24898238de5b0229f47b2f007df69258b5e225b1c",
    "signer": "0xEdcCb2e310b572E9742E3aB95E22eF128F11F483",
    "userId": "581292121"
  }
}