{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x65c3c7ec08481981b6334e5cd77937e30fc186d8c683590fb424b2cc50ff9c9f",
    "signature": "0x0f0766c2706ad8b9a022556b2902c471f324d5328614b27406b7c43e3bac27a52edae4b6ac2233e17415e0bb59d6b2393fb1558b40e50ce5ebebe67b464ae1751c",
    "signer": "0xf7F316bb7D0F92fFB2Ed795348f4372dE33D6867",
    "userId": "311652750"
  }
}