{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "340586",
    "entityType": "User",
    "nonce": "0xc4e597917c75662bd2d7ff9f46aedf4ccb3653ff52c28a58c1e34182b76430a8",
    "signature": "0xe33051ace383bdc85336d7dce7d6a7d10d5620081431a99daa5d48df7aebf5191dc54207a735c6a8edee3d2492d0fcdb232f0d8768372a636ee188e3649903811c",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}