{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5014",
    "entityType": "User",
    "nonce": "0x99435a5b1c7ec93e733e3f1d98b92e8f226e43a8dada8e57e952d6c411f47f9d",
    "signature": "0x9dae610789c4e9b0d519750622b04f84a9919cc3bee862e3c9ba547f3045f5da00cec55a625098a1fd1a93a4a822ed843db179a450d9149fa82fda003117ae961c",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}