{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x53e2a5412ad19e8eec1349cb178db45d4abad52c3c1756eeb9e50cae1efa61e5",
    "signature": "0xf546b5cadfa28d997ebd507554537ad557546f7fcc2cef82940cd8465f2f99017d79a1e0f108421955e28b07fc0106ae429484c9458ec2e820db1f5ea6a0ad7e1b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}