{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x12089b295338b6dc5d7e6b3d3c64f4d09869467fcc26b72b84c0f7d24e8c8880",
    "signature": "0x7c749746f335141f49584c93913032cf4b0419a0667370aca5d4b74581111fe557fcc46f6db5f0f82441a3b233b66e2778ce6903ecad616f801b99f419b046931b",
    "signer": "0xD3e2a2Aeb739263055A5ec4484257b4927578D03",
    "userId": "117667088"
  }
}