{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "409129",
    "entityType": "User",
    "nonce": "0x1c8915ca48bf4513ff67d44a00ed58ab63ddd3c181825e13f3cb182daca1cd38",
    "signature": "0xbd7a7d3b67b22cdb4aeed0b9224acd25ce841120424a7087450a3bf836cff3805fa094bdae651dfed48259a10802c91af3b3631d02f4fb3472a9c78e18b52faf1b",
    "signer": "0x3F71747895AE3124a09846D57a31978047E5bfAb",
    "userId": "374163"
  }
}