{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153326",
    "entityType": "User",
    "nonce": "0x51df5c8369a154eefab23126dc1cb1c88faab02d826253d6dd8edecddae57189",
    "signature": "0xf8ac65183ce94de1703c6043f7e4673dcc2660fa2505fb5715ffa9fa7bf059507f3a8e29c8b66772387855bad5ed274db779b8d69794f414801eb78fe82a98cd1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}