{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5e496c84d5933cb0cdea0bc8e4c2dd947542efc87a3285e9bfca1f9bdc950515",
    "signature": "0x32ad2fdb0d52b6c50fe739685e7e9f08c3c41a32a384138820a59314a2e34046055af33fe737600c9cb522d9a8f942607b370614faebeddf18fc3f323d6b6e281b",
    "signer": "0x54d5C666b27904DFA3C076806c46998e5bF8348b",
    "userId": "571162458"
  }
}