{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3dceccca599605aab5a738c1d542d03ea962756ccd89b22453918d5e28e31fcb",
    "signature": "0x839409122a4e78664eb05482fc44f4b5493974cf80d3975a19e455719a7805017ac5b95634ba5148249cfc52b48b7e81f48a4cc24de44abfa5e69e8475d94c501b",
    "signer": "0xfAdE60F44BE3Ad8C7AeC95e02cD3998526f8E044",
    "userId": "283138827"
  }
}