{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x05c8142495d9b201f78696c5283880bb298ab0da721333ac93bbaa9abc615f0c",
    "signature": "0xcc6c187f24138a2eac880ef920296d745309db3b4930529fba4ebb1a344a050a7a106272ea9bb1bb0b4aad8e8a6b2f389ee72066f459af2684fc0a463c6cba021b",
    "signer": "0x9066d101AAbbd47801B905516c3456CfB5eff17B",
    "userId": "621925924"
  }
}