{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb0c53f2ca252f8deaece5374ef7fea395eb3fd5bcf8331ec0ea308835d7bc2ae",
    "signature": "0x44525ffea402106b210540f9fb0b8fde5d2a6d4d23214f3941b8028d6f6357bc0cca8f05960b418b1dd461d2adf2af57e6c0af9e1e063f3a4dd4f4956ec578481c",
    "signer": "0x8a530c253eb725Ab5F7961A17130452e9d888803",
    "userId": "863627153"
  }
}