{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8ba4de745638297b24461dc9b7a29f998167af687001b32fb755368661f73053",
    "signature": "0xa28761addd8c660d155520294aa51c93a1f0b053a6bd6dd63e528681d436760a630df60e9d5365908d502fc80f83ff03802702afab9818df5e8110938b63d18f1b",
    "signer": "0x083626C5983025BFec0Ca7BC8FC5B244f8e29b75",
    "userId": "482858095"
  }
}