{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "452108975",
    "entityType": "User",
    "nonce": "0x963f030d6e6d7ea6d36c81122901b3a33a1e7920e308b397f390c8b7f3aab96a",
    "signature": "0xa00bdf2213d7b454d92a3eb1f77e3cf0ee4ac4a4510116494dad69385b74adba43dd22dba4a533612551e576caf357d407ada2a20ca479192269834a784a29b41b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}