{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x12f93fa18288d540ca427dbad4a5cf8c95b38b5da81c057e1fbb46e11eafae3f",
    "signature": "0x65d9eeda8895fb824731d934edfb31fbe55c5a88933a129c0301f7490362cd327f08e37a7b7deca3e13cac0870825eb72ceaa1ff6ffd391cb505c3cb597086c31c",
    "signer": "0x1A99bcEb1277f1d90Ffa77B2c480Ca93a4a4ebC4",
    "userId": "852344394"
  }
}