{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbf6a91ed710d77d6a136b05469de11b923bedbfad39064e8a1d36279c1d96c6a",
    "signature": "0x22ae281c3e53fb17470e6202b515e6c68249f78bab94abeb0ab8298d5ee62a167f45e76aab4a160abdbf8dddb2c2a5c40c29830fb3a6ce39557e486a115671f51c",
    "signer": "0x5849261f85EF92Ca2d73476F9408Ae9E1Bf79F89",
    "userId": "385866121"
  }
}