{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100747",
    "entityType": "User",
    "nonce": "0x231dc899f115d52c09a4d90dae8fc38ccf90678a73ef71e4163be3dd1430f680",
    "signature": "0xeeec0861ce880cc102fd4a346fb364380d6c41a48de4da3ffb0874d57c592fea351db83daa08e5a3d4f98a0cf8dd465a8813b59ba74790a66c6adf856a99888c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}