{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x233fdb92bf0e63fcd872d010f5e5889a385d6059912a1bf0ef0766a2d82abb09",
    "signature": "0x3f423e5be385916878b9ab4886384a8b6321db0a7a59d7ee0ffbc5fc2580d2dd26352edcb29dd5c29f7a6787a43b506c009035903716f2978388b8a908f2acc01b",
    "signer": "0x19fb45DC2c238C8e4abe5659E910fFa787f2eD91",
    "userId": "156440649"
  }
}