{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x84d0c51eb3e22d529d67154a2d7ff05ff15201c8b72b3ff27ae80b8968d2d961",
    "signature": "0x8e06450fa68a49c8549b4591c530dbd40f918f01db3cd38e86a4f2b932b52660493acc97407a46c2b527c93ecbedb27083188bc49d8cc669d189d6589ebfa51f1c",
    "signer": "0xa0512296c1d28EA25C5D3aB5D54df0243cDeF4dd",
    "userId": "724013944"
  }
}