{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9946ccc589ed78d754b6cd33535e07a60ff283569442a1a7d7463943eced1a15",
    "signature": "0x089db1148b532813279797a0bd547adef21b48ad5e8f8403924531ebfda0261b75e12aa95854e41ed1b86a9d448469fc463d769b156d0bbc00bd5ba3e5a95ea51b",
    "signer": "0xe4c27181d67759ABAe585B9d88393546AB6E8ad7",
    "userId": "251314897"
  }
}