{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcbc3f423536ef3fe01bf3ec26f3e60b36a93c033e642491cb9b09234f57cbdee",
    "signature": "0x46a06540d67adab1f0b0f4d2274ffea2fa30e73d410f6a93a8d0a90fcb2ba42b09faae8aa596d19238615482e28a5459aa98e9be0d26cb0856b7982b16637d711c",
    "signer": "0xFc088F13d4a1Ac06F16750acE28481185Dc8c881",
    "userId": "168139737"
  }
}