{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc53ecdd441cab434e2e6b42bacc108ad5a8eea8818a36a221b08e61dc2a4c711",
    "signature": "0x83c8c926d7d7c46e17ffbdc4a22c6ed5696d260d7e11f91e440fa05f4f8d6b5a42d67d87621fa4638129ddc6a9b8a7a732444a04991af692329fc811074fe8eb1b",
    "signer": "0x0A1576c1c1074FC75841d47BDeb7dce5eCe080FA",
    "userId": "181033681"
  }
}