{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78720890",
    "entityType": "User",
    "nonce": "0x24817c6daadd2dc5142b0c3354b799af6af9725e6de497f4b99acd6433692953",
    "signature": "0x21833d2b18322ce3cc196df17534a430747270b4ed084d228ab285407df5c9596d8bc0dd5b20bc6cb34d017ff5b7a90305e08ccfdd11a4aa7b752e10aaa1d9661c",
    "signer": "0x4D8EDeF47b57f98c89BDFf851267B0327BE4cD05",
    "userId": "5307724"
  }
}