{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xeb8bcfbfd8d3b10322bfade5ba643484f43876cea6ed9bb5df45015242bfdfa1",
    "signature": "0x40380b1572f210933a536fd507a3d54845f5634f349c514dba91e17dd483c2f539c58c9cbc7e19faaa185130deb8ae480d4eee3ce2e35087d5614536a3ec003f1c",
    "signer": "0x3Dd98e6746E2F92C0a4E1a87076f07F2F0d58736",
    "userId": "474827746"
  }
}