{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "468388066",
    "entityType": "User",
    "nonce": "0xf7fa5b23faf35f4fc3aabdda2fe7e3d9dad358caabbba3d5ac566b23a4aeb38e",
    "signature": "0x1224556d424a6008e241800fa0df36901cfd563dab1214aba1419b27f1dfbc831e3edd7aeb6ada6bd92aeab979e2fd0d203b7f8c8c4e1265c37d2aa294ad58c01b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}