{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "464068456",
    "entityType": "User",
    "nonce": "0x4211abe570467aff9afb901e324808712ec567dace83be1172f463f01272d088",
    "signature": "0xf7ee90dcfca7f7ed168b13831c2837ad07e1a51c54b921f097b79ec99fe569913a4e9215339dd2aad7d8551584f04bc19645f502fc4feaa7f23ae7b0bf968b201b",
    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}