{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0x0ce8afbcc089130ea643f45e132a04aedf115583999be8652e42a203660d1094",
    "signature": "0x714d565e57d5be83a92d1a83c6ccdbc25ec651bc7819410026a971a5ccd068e56303d59db875701d7f8b8547d1300b755cff311fbab3c09eecc17e61237981461b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}