{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137166",
    "entityType": "User",
    "nonce": "0xb93ff4beaa0d1f9a25c7e881ad45fb89b6fb7c736221c4b3384749984a841d05",
    "signature": "0xb13a2137809e5f9c399896bd7b0ce852e26d5c4b5163f5c49b01487719a1279621edd0d617d7bba2ed31b18ba6468793fd360ba725d28dd93eea9ac8b14c6bd61b",
    "signer": "0x7c5233DE7A8aD918D090BD36cC8C0e6273814D60",
    "userId": "559710456"
  }
}