{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xde869024831e2fc6e67680a4c8029c6195df6744f152f835a37b40455e329d26",
    "signature": "0x2f6aaded9ab2d4360dd3517e0ceb13976119b18766cb95f5f899fee779e21041559ebda7263fad6205875013ea13ba6924b7d27659e4fcdc9993695ed50929301b",
    "signer": "0x825D6a89C9cDA232A05F006aE43BEABE0048677D",
    "userId": "34246000"
  }
}