{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x66d96f5e77b464d85287c1683b67e3eeebabd0a158cc26e92a4e5cb2a95a6809",
    "signature": "0x93de4a6d59dde71ed8732abda963f98123962b3a26b20e18c854dd443997ff876a72f37448ec31926bc543db4c122cadc4345e85cb1666bf6e0086fadb3060c41c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}