{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x311ba9f7e718b6ebe207550c72875235ea34bd6d304b9d99e030ad0028762f1c",
    "signature": "0xb3c148c1be7779d7464a47472d9890af7066fbcecf7574aa943c7006b4e2920d04cee0daabf3ae13723cbc846536b4bd0ac6c76f6468b61902ec341cd37684cc1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}