{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa86b266ee78fb6e1ad3c7493db34d06dc80ecf861ded1256748884f369bf0ee1",
    "signature": "0xd304796202c6682969c41caffd97273438a2302666228112f97185d652855c3d62a3a148019eb1bc2d268e6db37fc5733a071501c4e403646c5f6dbd5f47c7a01b",
    "signer": "0xa650A694c232939f5bFCFD7BD7ca245060bc1b52",
    "userId": "438517823"
  }
}