{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3537",
    "entityType": "User",
    "nonce": "0xbae84b7c7e3db4bdeec8a1abde3e7aa48f3fe8111618c3478cfe10bf41c938b5",
    "signature": "0x535d2f4e81ac407ac8d1480ee91cb35fc4eb9cb5d801922d2b6a033119fdb18e55279f45f279ea07ebe6fdf3951ff8594c33b2e6187828ceccb7fa66a18dc2f31c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}