{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4cdb32e8eff9575d8585f0c0e7703659511cf56945be9dd9a7f9eb0e964d25eb",
    "signature": "0x42bbb223af4a8ac0e8d3f4d34646cbec75f777a2fe8cf5e66f9ee21c4028ec6261c1568f00eaa25351258fa7abf0dcd5b750d541653aae9c0a5a6fcafa33914f1c",
    "signer": "0x11473a13784a859f0dA2D1FFcF58A6CaC3f57214",
    "userId": "696202036"
  }
}