{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x87786f36a34c6c4d26ff3e94b381201b38e98ec3b97394ee69025915c6a17bd8",
    "signature": "0x20b3acbcefe6d65918a454f5022c765b37df16af11ba9f897e4ec10a30c00bab1543eb449040e6cba7c5e240b5c30998472a12e52d4d2f8244aaf81052efabfb1b",
    "signer": "0xcb5D87789Be7Fe51506A9D53b24d9D9dF14BcbC5",
    "userId": "947956805"
  }
}