{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "445501760",
    "entityType": "User",
    "nonce": "0xb8ef5eefa038f3c0e4760ac9d194142c27561ffd966f593fe2deed23d228c83f",
    "signature": "0x14dbe592e97d534cf6d288c7252ab93b05364129c447023c3a61317ab419854e08933d964d5c199336432b687d06ae1ecfaa93d3c9fc7137e6c292e9c031f4301b",
    "signer": "0xb2B3D446C5A606ee5B3e74e77EE3c96634De4a27",
    "userId": "399675354"
  }
}