{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x8cdb08a998ade3e9a57afef8da5f7b674995514167e972c5bc5ef9a11d9ebbcd",
    "signature": "0x3f925803675a1864d9d111cbdf022845417831b5b22f004ed8bc4ce2648a00a82aa80c8efb29bdd304b15acf82ebfa235f2f700a16b41bd65f386fd456eb23341b",
    "signer": "0xaddfe8a42a112B9e07190590DCa78C32CB396871",
    "userId": "380767039"
  }
}