{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17301",
    "entityType": "User",
    "nonce": "0x43dc72904180b1bebe7304d523bad7cffc1196da8cd49d2a011a7a8031bf7600",
    "signature": "0xbcc9539b2063eb0c3693b829de1672f5d644ec63b06b05550abcc2d326cb4c3308454ee00822f9aa8fc8ae1eb20240a58c2a486900cf5b8ab66e84e81063d09d1b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}