{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1686327",
    "entityType": "User",
    "nonce": "0x294956f1b17b538dfdc3b615bd5ae6e5f34aa98da192eb9afca6e9c00c550295",
    "signature": "0xdd90ef110fc6939eb55865d7394694bdb732d7bce5443eedd048e17e7f3bdd244c465e0576457cc1873e2bef7d8ccc87914814a2aec7f58e95a5c49a3cdb31e71b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}