{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1938690",
    "entityType": "User",
    "nonce": "0x25cef5e714df850e9d6dd4e3906f608045e0017de4180b1503cc699f103d5f2b",
    "signature": "0xe2f890163fc885168ccecff9d7a8b9982cce3665a1fa7bb49d3724ce2f9d88d978dfa8fef4fd900da78c2f2aa0a9db5b15a0a86daed6a351edea3f91a1d38d7a1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}