{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "199965",
    "entityType": "User",
    "nonce": "0x9e89d63de3c0fb0e1da49cf875075c99f9663f0a3d22e24be75741b45ee79199",
    "signature": "0xfa43cae036d64640f060b8231a08d5e2948f53e995186e0cbb0c14375dc2882a1387b20339e86712a898a3230cef614605b7a295b353013eaabfcb2b9f5f12e91b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}