{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x087bb36ace85c273a34e924558dd5fe3ee6fa193698552fe852a89b97503d2f2",
    "signature": "0x8fe391f807780fd845bbaaae9a4a5bf9bb79ffafd97f505838a9fb7e0ec657656a62fe01794c21b6508307b1170bdcce1d799c866ab8e7bd30d102f90492206a1b",
    "signer": "0x97784fe684069c05DAAC2eE8818F5a38EA1E56f7",
    "userId": "534968790"
  }
}