{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78483",
    "entityType": "User",
    "nonce": "0xdb72e1b635ef610914a754aaa4cba05aaecaff456ae0624f0c4d3f1ef12d7100",
    "signature": "0xcc15763fdc057b0d7b1127f76efff63c03a24422f58f881a8e8794987b07a70e7378e32db5f54d0f94d9298932d9514513d55255f5f7b915eafda6a874f0135b1c",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}