{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd0614d41dadc2c816858f3fa9ba3e3b65573e4eb6c04da1f6700af4de6aa7f10",
    "signature": "0x4be9be7f490a7fe4a1487f9d1a51f3baa0414acae133ff496817f560a42c2e75424464110c9db27811ab943d54f7d41f3c35a4f7cfc03147f6a16c280b64e3631c",
    "signer": "0x4A0635001f5d34a9227C2391A2a03972C23bcD44",
    "userId": "574030418"
  }
}