{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "267813348",
    "entityType": "User",
    "nonce": "0x5595cfb4a13d4c713cb812ceeb3d8bb26e1441ae66e763ab2d82189cab162f9c",
    "signature": "0x5ecc1eccc771ffa084de86e5fb83b91a2b6888f58a799da86f26deb34e4ff17f65f6474269dde4444f6e18a53269683c6320f9a314ed780a802b43e786123cc11c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}