{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50198",
    "entityType": "User",
    "nonce": "0x82e42e8a51f2a70e6bf745abee7857a7733214a45b0d7a5218066c4d3753de78",
    "signature": "0x88a282b94d483cfa804cd61ad894baa59cdefb6b3feaf446284dda03313df54c32be324d7ad9e9052dafd60051affafc188f0063cd91b7069e164dae440a3b5c1c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}