{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xabf56495dc0f8b78694694243510b27f001aa0bef63606b97f83950c5f0a59cb",
    "signature": "0x4495eb10273c02767b5f03edc521ca3981129f8aa8eaa56f60995357b176eaa63fac06775ed424254a3faa30861b7e4e983c2a55541236463b33dcb4946c338e1b",
    "signer": "0xe86914872D3015a80760CAd40fC24dC1F64EEDc7",
    "userId": "213396406"
  }
}