{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "762013",
    "entityType": "User",
    "nonce": "0x4ea4b35ba2b3367d73725c4efb6c1bb079efeb79293a73f454c9a893ad3d4ceb",
    "signature": "0x8954c649827fffe4f3b0e270909a9ac9ece82c614ba9de18a43ef47437de05a809aa4bd4c465436a4d620b92f932c083685e53ae74cbf476b2ec0e673dcedbee1c",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}