{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "945181225",
    "entityType": "User",
    "nonce": "0xd71c9bc5163211b90ed1ed9b91a21603d6262d3c98c8a956ae536440b176a886",
    "signature": "0x896638d94fc2179844a13f11a687896856bf826354af9b8f637ba150544c7ad605a0711246409238f57512597a1648fa6560b662f4323132aa228269011a21131b",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}