{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x968eb7f5f863aad58c24af33e58d1fa24a9753702b1f3088d75de7597ff438b5",
    "signature": "0xdeaac5fde45fc574a99a5b3a2a7f3efbffcf00823a5119de7f91932f202d049f1c40da38eb3f39c427908d41af2d163a65b4439f0f6f2817fea7f82ff528aaed1c",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}