{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x11e43071e805cb047a7cc05b85fcc396e450c577459f7968da2f543d0e1ccb7a",
    "signature": "0xa1c6714dbe062af5be67981f86e4124f4b215e4792a3c97cbda69a9726d647d54ee00985b07db70403ae7c347f788659cd578d2919350745892e93eced1e78fb1c",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}