{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd6f9f913d7b884dadcdcf8e33f086e3d98b13f635e3e9298802d00f831d472c8",
    "signature": "0x13493d511a60f1ba094db149f2e04c1b31e07276e618c42b92151b7a4f2d57956f0feb614d6e0451bfe5d3b8d691d271f734956a78cdfae718a3440d9e7a4f1d1b",
    "signer": "0xfc589450A34B7D25aFe38A17B179718108fB7b9D",
    "userId": "899796889"
  }
}