{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63993",
    "entityType": "User",
    "nonce": "0xcb4f3dbd9f79adbcc1f041ac377376c6b768cbb5a57f7f338224a2f868a889ba",
    "signature": "0xe33f46fe4036593229fed16de7bb3b386fde3f3fdc77b091eb0dd91bd205039f69ac00436cfdd5ef9986a3867edb4639da240f9c82af2756a73da67c0e0a336d1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}