{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x70bf987e15e3524805e0c18ff82cf84ba71f274de6d7872d97b5d7958c5e0321",
    "signature": "0x57bd5c57731d641f251cc728005b210ef85856c41356270a8aea03c6a043c4964c7910020fe42f6d864d461abd1fda93d9c1630ee9a0bdd39538b77637bd7de81c",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}