{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "686370975",
    "entityType": "User",
    "nonce": "0x029076c84bf2aa4ddc2ab8cf5f233b7e8f757988d2dce9dced2253dfd9f28692",
    "signature": "0xddbabacc25eefe430248bf06f18ad31e36c155b1e14712fc943ebd25252a97fa0410bc1514b66fed504511fffd326a845569009816e0a1a43912cc64fd213a511b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}