{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385517",
    "entityType": "User",
    "nonce": "0x716e28f92aba1de5302969b0d7fddada6e9f37e8eee54bfc0cd0225a8e5dee7c",
    "signature": "0x8c35892cff9193f2f24f6bc5a207cfd9002725c712e87a530fc329218a954a86157a985042cc673284b22e8e05592c1adeb10ed8cad372e5d4b017d49c8948f91b",
    "signer": "0x1912FC6B7317125d52bbb01C67381C923FA92aCe",
    "userId": "763473"
  }
}