{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xd6c74af9d45d8be2867a57fef4cddfcb911a67e075b643b4f2d34bedc3fc37a0",
    "signature": "0x952db875dfa99f39822f95bba9c92565a48cbcdc85102a514d964af43ee725d820bfb140a60ed7fff552ecfaa37bec64f1c1aa216b1e8020aa991c23aa88852b1b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}