{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1f53b34ecac16d4c786f30ebc14d5a73c743b373a9240fc72f45070f45a495f7",
    "signature": "0xbcc1919e8d8e2169c5a3b2261db0f84fb828b02c1cecaec4e7ea13445fc42e947fafa28a0f4b9fd3d6ae5063061f0bc0736ffa8880798ff1dd70040e78d247d81c",
    "signer": "0x4C73FEA0aE69E486D85ad0140922DbA40BF09299",
    "userId": "776669163"
  }
}