{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "489165782",
    "entityType": "User",
    "nonce": "0x5e0772369d41e6c2610814d255b5c0afd54ea07df27260a3f6d573e0febd0920",
    "signature": "0xd2a73bc061afd155c69d7db9f9e6484994824e0ddccee848a7ab645863d51eec19d412b80deec3924a9ec0c99b7bdcf913d67491bf14d18aae6f4f084969ad231c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}