{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216588",
    "entityType": "User",
    "nonce": "0x0ad6ae21089e385fd3953be27a9e24d826109119eb45d7d181610582bd38f709",
    "signature": "0xb52d42ae794addfcab7267def7e5b2ecb54c7f8563de954b7e35b71643b915134eb92cb0aa321449ee62ef7edfad40cd928775eb9783cd4054de487a8dccace61c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}