{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdfd76862cc2f6eaae204ebf7137e67aa0fac30798bfb0d9b1d0d1df2ad63da36",
    "signature": "0x7a1f38e129ec3da45357f5aacf5a7369a75ecbadcd6e9dcca2b14d20b6e74d5455e5749996dd21050fce438d4e8da50cd830b9ccc4433bd51b5e7540feb26d861c",
    "signer": "0xf37F6178717ED9b17529F23490Aed662B5391cD3",
    "userId": "384660404"
  }
}