{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xc8f7291d13756cdcbdf0eaa636b59a8a7727b3fec1076d6409ae1bf2bffbb614",
    "signature": "0xcc9b6daed414f1a6f91a34921ceb16ba83303dad42d52713c90aa4bb4c368d7f70b7e85447e7112410240d29cb7be3a2b95e44d46756f0196df049b07a292f601c",
    "signer": "0x7FF24dfd471261490317851550Db9b8fab0c6df3",
    "userId": "1422295"
  }
}