{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xae0f966df13ac2fbd27749b015658ca60b31388d046b72c950e7b4a1c12cc48b",
    "signature": "0x1087bcf655c7ec42e0a122b3e287eed97771131c5e5cd3e92332b780a624d3ef41c7c84b60020f63bb8270ed6e8cb15e7634bc783a7cedd36fca1ba33c2106ee1c",
    "signer": "0xfD887Cca1aa33010930F493849cB4eb036a11f49",
    "userId": "516824957"
  }
}