{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10678",
    "entityType": "User",
    "nonce": "0x8f4db5a9e79676f9bae71cfc9215810496175b1dbd23e1fab2241b198b84c15c",
    "signature": "0xf238e0b2207ade83747a479b38865ca3011460707fa9ff1b6763ef61f198fab661f2301e75230baa5d8c2416d7506ca236807e169c09dffd3f70a54458e910691c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}