{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "627836",
    "entityType": "User",
    "nonce": "0x4868623cc20139499bca9c56da5b1bba555fcfd9083eb164124d1a62d9a67dcc",
    "signature": "0x0fe9b3024f01d47ff328e244a20e232537912c97b3014e57108f53387949db38632d88b4cbf178968f6c34764cae7e5ed9a2f1480119f1dfc15eb79c257833591c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}