{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "758745",
    "entityType": "User",
    "nonce": "0xd16a8bb0a20b119aee348c1072c31b996df030fd7369c4e5d6b47f650a346853",
    "signature": "0x80ee79bafb5350824d41f9739c0ab16c4c60ac82be3c5a099518dc569c644f1f653b130a76908a111e66abd9b987483342eb73247db046da8ae3566a37436a961c",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}