{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcde5145efacc5b6dc34fb3d65bef5391a7d98c68320552f20faaa33129d55dee",
    "signature": "0x31b7d561da705f8ae9a2ec06c7e1633fa95bac657c631ea867c6b1ca8ca6a9d7738f105f8dd54e47ee5ef5991a836a263a239c5e55c61534bf42d1d23651e1841b",
    "signer": "0x7fff5ecC5372FE9351794c5A41461025a1fE95b7",
    "userId": "414519762"
  }
}