{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108320",
    "entityType": "User",
    "nonce": "0x1d165b5ea47422472b94ea3ccedfe530da29dd5c49534ba73d586d44824c5faa",
    "signature": "0xc94159916dac8b4b8bbab8d6f4654fdf85b1870b2ba695091041f8549cd40b2f063d794d532b60d3a55402992da596c1387e5938150051eff2eca6cc6c7ff5161c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}