{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf07fa43da22ea058aa64d89e9ef6fb1ea52d15f7721303a701f82151a2a99a2e",
    "signature": "0x46bdd45567a459d63eb5e5176d7a020b039783efc42007477e8e4b54bd9e0cbf1580b222895b227ac7217136281db1db1a7fb58d539cad6e67b58a0355c0e9f01c",
    "signer": "0xaCFF91F76Af49969648dC2d98cC094EBA9B33d70",
    "userId": "380735807"
  }
}