{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59868",
    "entityType": "User",
    "nonce": "0x4dcef1e15e186088202e6ee290aa18c377f83cbd0cd2364fd0d17370d5ee5373",
    "signature": "0xb0c9bff318d26b735a2488f7dbb05da1b6e77e1867d18b09c58e8dbf3ec63312644c705d20150102aa2a090f4c36f76aab559700d7508c3e309de119b62867fc1b",
    "signer": "0xb15d7053c985Edf1d74fFc9893ab67Fdc2B33090",
    "userId": "211545300"
  }
}