{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100976759",
    "entityType": "User",
    "nonce": "0xef9d70085bed73129d3ffefaba022223494c971605389c2f1bef6c2207d78705",
    "signature": "0x1deb4b1b543d063f208e063b00b7fd5b283e4d87ab1abf6971f4dcde62f406cf6bd0ee58c47f2d66086fcd8d4f3b3fa860378d63165c8e7d42ab3db97e3eaa561c",
    "signer": "0x134f5c1f8716402474824c6A0AE855af1E3053eB",
    "userId": "462352719"
  }
}