{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "681866568",
    "entityType": "User",
    "nonce": "0x3d0d69ef80839feb5397d205ef6df5305dd76f99c55cdd42d1ebfb49412ab99b",
    "signature": "0xcbba23380cd379a054a05191f47d197ff03595018f177dd71226eb50ce9f465e6b3b892366259aa6dbc5fc25c6f4b4b53ae8d0bd459fae4a571d9de314a50c401c",
    "signer": "0x7C2169544c0568cB3b210f320356B6A77E891F30",
    "userId": "495616082"
  }
}