{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "323272",
    "entityType": "User",
    "nonce": "0x899dca6cd2a5ae2ed9ea14f4823bbf0ccda87706f6bf7ac3972334c25a8bbe21",
    "signature": "0x44172ba4d8ecabcff2530ae5810b0e56f028565823a143aa004190ccc11dc00d521f520a29b6116de82b2f13e3b24b100444403927a5a7eb867ff2993340c0561c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}