{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "191315561",
    "entityType": "User",
    "nonce": "0x8fc68870938a9fc0313f76c1083a950600ae4cbdf628d5f7f60e99923baf14a2",
    "signature": "0xd3370a46991caab0bc596cee969fffcb90dbcc85995686cda5ce62ebbb3badcb34d9218793412f8d83be1409383bf2dfdeee4abec8df49b8cc6803e194f777c91c",
    "signer": "0xD24F8A2501472e4c9FD5dfCCDF80B550912c7FB0",
    "userId": "887242445"
  }
}