{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "117827",
    "entityType": "User",
    "nonce": "0x27c1ea302d65f6e44abe336cf1d1c3bf60da7925bf94ca4c98de8b6741d7eafb",
    "signature": "0x21e2b07d1e35a36132df7ccf048e0d32a4ebde0a65dc27f2aa30c8d6a664e45875cae1f024df0c85bd2dca173a6a9877e1ffbb8e491a26df0a217a61ad5c5a7a1c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}