{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354997",
    "entityType": "User",
    "nonce": "0x9cc4d89da8f1c0b563dd969ed166ab4547cda5930892952b13753f92ed7e4879",
    "signature": "0xcf542662e7f48ed7460468b4eecd963e696a8de92e70df51862bfd10b959877a5c5a6fa913f36e4ceb3798ee33474d937a4eca4671246d85fd3a9d838d8577c71b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}