{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "49965",
    "entityType": "User",
    "nonce": "0x4477223212c1c299503d5460d21a0d5a648a5073f82e47662dfc11e3dda9a37f",
    "signature": "0x40a8e17c5ac18cad674e1746de8da7a46969fabc4ad8beb53b5338c18fc7e2d801403a21b22bcc441ce7da212ae8dfc269051fdf8f563e441777e4bc275893881b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}