{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11831",
    "entityType": "User",
    "nonce": "0x969f17a97ee9920fe90d4e71154b6dd243b547bcfa2761a0857c360637a81948",
    "signature": "0x13ed5132f6f5344014a57ee266417e5c6ed7b12009287cec984de358bd278125388513e3446cad3b0800d994d026a7f0131305f76486476d895022f38b170b561c",
    "signer": "0xE4EF593fb5D21ecF6B00BbBB006Eb9725F5F7a5A",
    "userId": "852971520"
  }
}