{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3541",
    "entityType": "User",
    "nonce": "0x37582180a7a04f63dcaac99bc7734bcd229f168106fc564944fdb1beae63d2c2",
    "signature": "0xcb26d9ddb281373f84b3c4ca6bae41de4b99a3b5b9b0ab0d8ae14bc10e2de1080899189b5799d75b1d31f86e12353b31274e424e5c443fbdc4985c3de05864521b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}