{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb83bfdb20198439aad97146162cda3e1d56be5fa1d3b3cfc7b0310d136f11fae",
    "signature": "0x3ee100fe66e17ff9fd9007691ca5158ac376a14a417520b8040917cbf637c7121114599f41b4f5e446669783cbe060108481fb953cbed49b1cc48eda57432a581b",
    "signer": "0xCD23b5ae760853367a8773a7E36005e3E44cbcbC",
    "userId": "208462349"
  }
}