{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "374163",
    "entityType": "User",
    "nonce": "0x7ac74ecbe24ee57ded9a1654a98abcd4b8429a3a282d5a1dafc022fa39b38ca2",
    "signature": "0x5a9fa802a82102fde651e2d287c5a93ff9b2967af95f0a97fac4bafb8702b9f10ac2a65397de286d2cda54a018d98918f7b6bbc97a66fbadd145a08a471171071b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}