{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd77fff6e39b8baef02e2f105b5921386e9938ff698e23c9ce6304e747ff30ed3",
    "signature": "0x291fffc5c797c397f4fba3e5f9ada92a4867b2644817088d3118cd228686aa0d2990adb68bf2d430e00c26b437385e76498be1bb5b38f49c93ef96282c0663491b",
    "signer": "0x0E1419Aff1544Dde5c4eebbCfA208Df83ACdE40A",
    "userId": "564626302"
  }
}