{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x53c8e9bd899ba02bf49a7467b93f02e23875abc3892df7103bb6d82d4e3a0b5f",
    "signature": "0xd9e0a9af2c7405df5a51f7479bae7c06c47cb77a60beb28cdfdb6235f05821031aceace121ebd159bbb79c78bd92757916b683d34335372f0a7506d3ae95a9c01c",
    "signer": "0x25F75388E502B5F033aa0b5b599B14D0F0f75a4a",
    "userId": "357543587"
  }
}