{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108203",
    "entityType": "User",
    "nonce": "0xea95023b263a606d3c5aecd684bf29c02a70c70cef702b67337f0eb1ea2aac07",
    "signature": "0x6e31eed5c832281e97eb9f4f8647aaaca5ab1e9b49a1583480d2f8d88c0258cf6f3ea5a2b94368a8ea3c6bc1f6e5e9a0b17f691ba4fb7bae2d38199d708f196b1b",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}