{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe4a98524b99f9ef214b03032a446887ef6895121098d66acc369be9c3ab1b02e",
    "signature": "0xbdd0ebace7448b42360e345ee3f08151459b7d2acd7b6db95a1b71942fe52fc80d682dfd191a6375086be19cd52fc285e6785bfab506d393825a839dcf84a0231c",
    "signer": "0xd654246303807730d33Bf88fA9ae062763135217",
    "userId": "531592512"
  }
}