{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "842982090",
    "entityType": "User",
    "nonce": "0xc143a4027619ff28686ebbce83b4cf5786bf8c62dd6159126a96cc392c03df13",
    "signature": "0xc2bdf09061fb343dc7bf4f72ee5a77a772df44225c568c147cb524c9d0ea540e75dd9cbc17b2bbe108ded511f42995d808cdba64f095f5eb9a87a7ece6be418f1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}