{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5519",
    "entityType": "User",
    "nonce": "0xa020539e236319c2ad8c6b8bee023ad2f8b2b92b5e1713319ed9d7edc972ec0b",
    "signature": "0x66011d58df20efb5c4088355ffa9c32db4ae6b25f88fa62f62bae51468cdfe5b2dff19a49a94134ed5aa4baa075840c49dca221bdddcc76256dce265b308ff9b1c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}