{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164551",
    "entityType": "User",
    "nonce": "0x03b98e63a765e733364cab8979406c31d7ff507cfe12185473e66f98ecf03989",
    "signature": "0xe077a59054cedd489498eaf044fb1401b388eba59df98c43ef2b160fe5264ad5501a5bf2c2194de0887ea46a249daff9413a1f5d9218d5dffa8dd225a64b072e1b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}