{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25895518",
    "entityType": "User",
    "nonce": "0x9354d54ca8a00c894370551db929b642506a49950020978ac0682cab9160a8fa",
    "signature": "0x831bda3a04b427f697971c8aa7892bf05305e15d41ceda8fb7a3f6639f1326a160ea7a7e90b5c12fe3e4a99c19835a1937a772588b908918408f09b3f52b6d481c",
    "signer": "0x399726fd5A103a5f9026e1Cfe43Fb38073AE3A3d",
    "userId": "193799807"
  }
}