{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdb4a52faa0e617899a6d658d295b1ebb1d17ed7ef4cb97a0bae545c3ed3c597a",
    "signature": "0x8d1db08444125e4d49f6bb310eef1cf6ab6d1a72d7920e41572f0f82c3875e5e4f10102833e740bf89bd644b8d2f3ef19ce29562dddbe124778c9ac976920bb71c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}