{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x90fed4346650c37f80c7dc8af1c87c9c0541d545aec3d006dd91be6560b792b9",
    "signature": "0xee68a905beb1154a526ade3211db80215d7de3516e5c35b038325ada38fdf3432e933b56e26da85958c059c0a8d29a539202d5d8d5ed08dbc62d735c9b584cd21b",
    "signer": "0x94317aD810B64cB583acE80e04D7Fac703a43fBA",
    "userId": "31002650"
  }
}