{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148463",
    "entityType": "User",
    "nonce": "0x56bf87e302d5045b7bd3d72bf6e64df5a3003d8036ceba84d009781c1162dec8",
    "signature": "0x587251d80da74149ae16c20723b4c67cfed184cea7eaaf0a79cb85d2a60413ee197614bf668dcf3431e8d9080f4227d6053231ceb01c6e9fd072e467e1b8506a1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}