{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "636236864",
    "entityType": "User",
    "nonce": "0xb2172572c24a70d3ea054a5fa55dd20aaa0f73b2669a8a3742776b76da4c672c",
    "signature": "0x27e8e2089c9a59b11b34972ca7af83b6ad5f8a4aaac0db36af83ad4e289d06e81bc79e9f69bc572b21f58bbde9c463698c235710f938d744133c5abf8b71b1fb1b",
    "signer": "0xb7cfC3e8ADEA33d90F4f4B34f672a1C391955768",
    "userId": "120328"
  }
}