{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8624a79e81de587d9cae37fc3cd632439747fab353d66cd4ff01d7b1d7799d00",
    "signature": "0x41829c1ccf5cb4bfea8fef154f1a392bfee12829d41bff9f62708cbb89632e7b60fedbb30705611e2686a034ae27fa3178c6195ea0fe26e834202f4f2978be851b",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}