{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xdb0c3920c1d9c15b1e8b58353f5d0c70adaa42bd5f5f5fe3e8a71c7ab971a851",
    "signature": "0x564c0bfd94f0adc7e8e47940ab52071fa664dfa6d894af144f049cc33286c0e940aaa3819cb8d0369ae4051ea3a80d13b8582acee11a55192642d7688ed067451c",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}