{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "82105",
    "entityType": "User",
    "nonce": "0xd9d5851709fd174e85c013e03ae7d885f3d39662faf9b05d08b8432c0ed2d72d",
    "signature": "0x81f4708fcc5ca477ad0d5fc94ca8fefbc1ef118772f904ac55fe358f2c587e5540f5fe4218f1b915bb4cfbbac3ba1bdab14d2d7f5240e66de4aa9371de559dd41c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}