{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x2124322693cf26bfae2d32ab60fdad2abe7244026b6df022519cc2dc30dfbcfa",
    "signature": "0xb830379370017ffdcac054a1d0c58fadd360554578fb71d21781cbbccc31beee3da3350725218d254bf03aef690d3aaa9f069c27b5f42e5a30b3480c05ad43a91c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}