{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x17c17572885235c9f42e8462308a08c2c764cde533065f5daf61a8c0c588bb7b",
    "signature": "0xbe5f7064eba2aecd54c90c95c9063896d7b97984765a0be9eb6aee9e1f54c9375ce0a1411d48e9e543c0fe203bcb7868fd4a2df15335ddbfebc4d28869857d551b",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}