{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd87d96ef0f3b6e9b642f630800db56f374ea6f88930e24e686e5c606a6db949d",
    "signature": "0x55f6b46cde8a5603a9963c23b03e944fd5e6d5692cd153a6aa8800b0c86d6c977651339c4a8048cc55a05fb3253932523365a603eecf48698cbcd02c753ef04b1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}