{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xdb216235dd63cf3722046da4ab023a129eb1f1e8e34361b2fbeea36c1c513543",
    "signature": "0x54077e076bce214d8cf384b5bc1d9925423dbc7df5b8ab2a48d282a88db78ed20e820fcebbfe826e9376621adfae2ac5c7b9344e61989e1ae0ca0c526cd9f5741c",
    "signer": "0x303fD6F7668Ad0AD901434B85eF391E249785A2C",
    "userId": "179777073"
  }
}