{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8411",
    "entityType": "User",
    "nonce": "0x6cb64bc7879f336d24e1d5b8e3fcc39dd42b1f765365f458657e078a1b4a00d1",
    "signature": "0x9db1bd6efe0e3d3cf1362b5a4c793e0c04344f17100b7ecdbd0928f9fd03a831572fd5c15980ce189ce62387f6f9f26f4eb3e5113cfb68eba8de07da4eb9e55b1b",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}