{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301008",
    "entityType": "User",
    "nonce": "0xb4a7930ac03267c61907c549b5b9cbffe81a7c582dfba10a8e849b203371df83",
    "signature": "0xea0b24da0045d323125ce1d38c60a8d6c03865c96a41a1b1c6c5f5912041ad5734e331bf6ecb495cd3fc8a81afbd2158565d5e7057d45f8a16c36859333694321c",
    "signer": "0xF7F56DF4D8a2Ae2BF9Ca645DC684f84c37BbDaFe",
    "userId": "116272245"
  }
}