{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x1c2d08afa0f053d42daa6ca6f0589d93d240bdb65bef4380a39e12e6c7f66f67",
    "signature": "0xfc174bc713405d2a02867f9b62a70edd02ff1a1907756fae97490cac1720aa9104c8300dbd8af18ba3ae4fca4650622642026183e1f4d5e8588e4178eb371c8b1c",
    "signer": "0x674FFC02F71bdD4bD3Ae60c618579EBDD541E397",
    "userId": "787787230"
  }
}