{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "215830",
    "entityType": "User",
    "nonce": "0xd98cc19100e3ae8d7c89817081d179b1cff491a453dbdcd5cce61f80c283125c",
    "signature": "0x39ed654f890287237baf523fbfcd2cf28c3b729ee5d512c56c0f9c929fde42bc59492a2901dd937d6584437508eeca1e9deb92dccf24b46861b124d4000a95e11c",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}