{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc01a1505c5f54f83ec4705dfeb4edcc4bfca8ac5c8166235ad5165c3908cfd70",
    "signature": "0xedd8c43205dff2b585f7858c89127ebcf60c7bca8080e4e774c169319e61e19146f5e2a30ba41c16e5313484ece52900d320a074747f70bc6776adb79cb9dc161c",
    "signer": "0xd436c10bBFA032b075341dDC96d57e0e948ad8b4",
    "userId": "327627218"
  }
}