{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x75c92a20a2b3acb4d306ac89774f4a44f62b0c160184245d4c6010ff8bb4dda1",
    "signature": "0xd739d3b1cded44c5b94c55fa2f06cb0b07b1490b2f13266eaf91795bdfc2d745469be1b0c64d16b66a4c23ed99792e9eb62b5b517f33cb77d8c4f97416956fdf1b",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}