{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x359b09a61ec72a9a32ab6373f7804d352320cdede5d10b6308e916d39207cb2f",
    "signature": "0x828c54a5cd428421d94d8f2b6784d6debb9c6c04e9b4f0394751a3ff46b3305e0c1b07e03833b728389e8ebb64f8323390e61f0fb634ef63364e1e782b85f5f81b",
    "signer": "0xCd165d8cbB15a79fCaaF7b55b9daD9210f152d42",
    "userId": "994640922"
  }
}