{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1439165",
    "entityType": "User",
    "nonce": "0x6a5569345b658b4794f6130a7295faf0425d36b992326e7d02d3f05bb2f4d472",
    "signature": "0x7fb4cbf86a13ee223cd553db54cf92589ee409719f7a255c489c84ae2b5abcfa4bf9adc5f3f529a74585694b1e3c1885a9e8860e6962ab33b9cb5c64587adb5e1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}