{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9abf5305950123bd0c3b9f30d30b00700f57d2d0247f9d4eddc42ca72d9de3d5",
    "signature": "0xb85f8aee95b4711d8b0579878bb934856d60eedc7462a9a3d763908c25228d6e1bae9a9754bc4f4428981376f432c959b97331737307c50ffe6008a9d27f45631b",
    "signer": "0xa4C04ebE566Ac16bBAA22977667612b4039476F1",
    "userId": "589827157"
  }
}