{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0955b3fb39ff0ed08f5292ee9d2dc31b018f28ad79022c33b57903bc44acf5dd",
    "signature": "0x316b1bb6da65eb8dcdb44589f76aed2598034a631d18149bd229a900f5c1110c6f87b7cbca959ce93200117f538a2ecd7d3947637ff9afb1b4d568255fbff8c91c",
    "signer": "0xc941BeF7d1d7AD4C3b165528F8ba15b78176F554",
    "userId": "480892040"
  }
}