{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0xbf318207073e10443d44349d50983d5ae6ce5736e035217425dc322ca6e68cdb",
    "signature": "0xf419947aea88802a1d3348f807b869f997b60d4a2129b5ace8fe93054c02bb8560bbe4bbe153b87bd17497d5725a00a9fa6cdd7a4379f73b67e367a1c432c5db1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}