{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843258957",
    "entityType": "User",
    "nonce": "0x775d17f45501f2dfb63098168db466adce48128d11dd799eedbc579bc65e1b38",
    "signature": "0x70d7caabe2b7047cfb8e6d9e77697360908ceeef1752c6a40f7242c6edd69dc43067cd110f93286aa3af8387448ae758b27f7cb0665ccdcbe15240826a964c8d1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}