{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395602",
    "entityType": "User",
    "nonce": "0x8b904fba22fce02f163912cdded08785aad278aea0adcd0b904dfcf0dbfc293b",
    "signature": "0x5855a80023c84c6edb23da393e59a44bb671a62d05435b0081466cf5af72c4be42182fdd4076ad62522606ddf44d7217b92eea0090f0b7173cae978556a073fa1c",
    "signer": "0xf03E2eb658f4057Ea4255CF34BcE6009938B86f6",
    "userId": "904522318"
  }
}