{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x17a0f6991fa2aa85da86cc0ddb0bbceace52efa0c83a0b3b83a4f45a958eb1ea",
    "signature": "0x79e2b56444a63d68b14f656078f9afa0e9e5688da79502e107d32cf5f196550261fa4a66c3755b6eaedcb0f71730fbf3bb55bdfb59ff8fbbfb785dbce0231a2a1c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}