{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "19891649",
    "entityType": "User",
    "nonce": "0x91f2e36ec62e46b8489a96556cbf88ba4aececae5dfa0d212e5f218719ead824",
    "signature": "0x157b915e8d0fde97ff411a8a6dc272a55bb5b91d1846f862ee9228407cf1f1196590e7e311325f13330e2d0bc8a05842561f8b9db9e57146c5102640789bca8c1b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "175162"
  }
}