{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xbedd867d1aa577083af9468ed64c502788dfca365fc46e051629b8704aa45475",
    "signature": "0x81a3cf41807c9025b2f19ec5d9994c3b714314420dde226021130398f050291464f274d636915959a650ff28ceb58b4d99004e1a915764749a6ebeb3360d7b361b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}