{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xfe1086e58f8ee5602036c68a306e0bb7e3a3c3a08d789428a6a7b935db404d51",
    "signature": "0xf4861c27297b92da270bffc50baa259bacad250ca300158a6e025dbf2544d9802fc99888117597c2c80f43d8a4a5a4c27ae8da0217cd66bcf6e1b703c3c5e5931b",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}