{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200730",
    "entityType": "User",
    "nonce": "0x124771504f087a9876747bbdb01d11eede14e73c0284770ee16943e5e57f1cc5",
    "signature": "0x003ff4da0b346279a89c5908f745ada6ec87c9952c967223d1cc9e0eaac9deed2bc7bb666e1bff3d4b5bfea80916a5d60460c5bb93a767e9feadd84ddcb91f121b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}