{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x1a5c883c4db17978d044d77243ff4f47cdf428727f99266d2b9698a418ed42af",
    "signature": "0xe87165df930747b13f200fe67e6d7f3a8ad1062df28d7f6b7898a010f3114e020284d4dd4c2771502dde5ada0a0aed6f51a720145aa2df05c91d9dfa2d400fb71c",
    "signer": "0x14FF2Ce3bf23AEeC9C140996251F6f85D8e99431",
    "userId": "53273933"
  }
}