{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "460631539",
    "entityType": "User",
    "nonce": "0x22ba9256223f186759c9b2e313ebf2020091b97cc8aa6229fa15c8715092103e",
    "signature": "0xa3d8497b069fd8666a1cf54b5dedb5a8a532284255be8f9d810252624892ed1768d96366c0cfddd4db8f288784e1f6e87d023f0a8378f349b2f5ce555920185d1c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}