{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964966160",
    "entityType": "User",
    "nonce": "0x7a5ee3a5d4550747306c631161a4a2527a2c8ba74087a4e8ad47832de828083c",
    "signature": "0xc19587b2d48617a96958b38a9bc30ddfa90c072c31b769c0400f3947fe51812342802c1477efc084fe7f1b26b2107edda4ffb13e8c0ac9fd7189bb90c7b3de051c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}