{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xb5fe113ee8d89f071608dbe3365300868a48b842aa743ee1244e905b4989c128",
    "signature": "0x8c7ae1ff4405a8fbaff94d78a04678e586ee04b8b0241c09c304e6bcdf87c96027b47e772be117a24d4027a55ce05c58665e0d9c0311c84e27505c1616d12e511c",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}