{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa7d96783222945f405dd8e24c46389dc8bf6240a89178da1a8d14449b31bb6ed",
    "signature": "0x90f3cc2141e4bebe9a7be743dacffb19014a16b0ec618b8fb01e8e76f45037f35488dd668172a18ed984c4a7f69b479d1b598c6b061a01cb400ebc5552a7f0321b",
    "signer": "0x4311193589ef08f37Aa58EFCF244EE634159593a",
    "userId": "224438007"
  }
}