{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948329777",
    "entityType": "User",
    "nonce": "0xca105e36681a619e2cf7f118f18578e305bb4b7c5687d47746425b4091e0d2cf",
    "signature": "0xa546e0cb2261aa07d5aec955e02c7343f5d4466e2709ec26d6b945c57cb828ea44049d93234ed8f57a2335f1e03a6d3f342c05d99cc68b6a8d387cf8a668ef1b1c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}