{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0xe003da1d32d07fc0551998a9e266ea9d1697a1188be80eeacabe14dd9593c592",
    "signature": "0x22a19a9181b3f4e2fd1e85f431d836b38bdcd80571aca267053de026f92f46655d8f7df50df0f2927cf2533d4740e73e670dd63973e82973ae636bf8927f5ad71c",
    "signer": "0x4Eb7b4d3E5A99eeD9Fd090eb5C8692d905b61EF3",
    "userId": "94041"
  }
}