{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "980401",
    "entityType": "User",
    "nonce": "0xef01d8814c47129a7f5fff368c325f223cad188e54cf797d825dcac763b05c12",
    "signature": "0x883d84903226932a4c378217fd253085a2ee8f9cb8873a66237c66f3117a061e7034f567a07105906578af5d4034ac4a78201ed9c5c86c0067093004b9455eec1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}