{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6205ba89067bb6f0a97a7052b74f8063718f57d37f0e0e0a060194c9e477c150",
    "signature": "0xed71bc8fee6f3f48b03755992833b55473e49bb559dc9f0c2b9f1b3dc9577f5c1586cd442b9a6d12b9ec90182b03d866969e6c4c6169191b2fc6a567a16135361b",
    "signer": "0x660EccEe4af05CF0B4F6cC14fF12a7062453560B",
    "userId": "88341915"
  }
}