{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1f21c67c89ac24d8aab2688729e89c1316075f4117b426a1caa93192c6ab5db7",
    "signature": "0xb29a6b44380e3bbb94e78006f6ad83bbabe641e2ac791c0d9a1e3de4c080a779188aaec710a49c07b51c11fbe3f7f312a3ae8b06e623d72f1634d97168bda2411b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}