{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1112",
    "entityType": "User",
    "nonce": "0xf674b7e0726d98d14708466fb62e9b6a23b7cdcdd35cd990204c99581cd71592",
    "signature": "0xba3111dfb01189b722f02307b2e03684691aa5cca2cf111a15cfcdc463780bb54975b7fe3cb01d931b7e2078a2781cff8cd6e4c994b9a219aa7dc07b533c30061c",
    "signer": "0x222534475146193b99B68F2E3830ED2b44307C2D",
    "userId": "991417453"
  }
}