{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xa68377beb13853957a6668d5651240cc0889ec22c48e79310a6eba161eeb3b2f",
    "signature": "0xb0dd466fcbdda7a858322b60ed0b39ab5731a9841ef9593db544c78cafb93281029638d010d7c49c5784c4c33ec15c8ffddf5e64f8d6fb18d6280fe504f1df381c",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}