{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "322800",
    "entityType": "User",
    "nonce": "0xc374e0ee0bb494ae0f8a74691537c90d0d20915d67828dd829ca61c98dc2199a",
    "signature": "0x9f5c3a24e6317110697342e83ca400fa6debd9644c9beaf892fc949d66ed76fe5617e126c61353fe16f2e61eb1f4db223745157f0a5dc20ef9d63b8d8c8fa8481b",
    "signer": "0xa6537b4A64192585E782889E1230Cb8E13E01fd1",
    "userId": "154253595"
  }
}