{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916564613",
    "entityType": "User",
    "nonce": "0x4809e0dcdacf871fa2a279b8588891560553953e2a84e1228156e364b2ccd0f0",
    "signature": "0xd27d6bed062ce52e35cd9a82f527a856104f78a83b7796aedf31bc0238be2dc15eaa382870cc014148e7de1e378d3691c0d3df5e6135ffead7da801f6e5a21751b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}