{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x90b0824dd4a23bc67e3d14e97c9bed71b5afbcd15832c174cb4cab26bc27a2e8",
    "signature": "0x5fd61f971c623df9ce65e45e966d0b3790db77df3836555b2ed951fb7c8af217178d11cc63061df21612f9355929316aefdd5753dbfb892a3641f4457317b1851b",
    "signer": "0xd12A323399559A3773F865c8F21031bc39c29135",
    "userId": "219968466"
  }
}