{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb1fb2ea62800b860098d5c9f17ad7440fd1471cef541045d7677e9f9a3757987",
    "signature": "0x4e8c6c352813b9dc77fda665049c72a9f2e3aedf0ff1d2ca0f5fef7fad3b49a92aa2b8c1926ed8494143c98f21f4cbfd4965f2fc6b64e100811c3a6b2a11e7af1c",
    "signer": "0xDb42d04489EBBfD10E3260BADd0c9d910349a668",
    "userId": "206434295"
  }
}