{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916206761",
    "entityType": "User",
    "nonce": "0x80b89a5a1525c5fb5f2b9e4b286883a851181cfa9f2e603916332093e8b383fd",
    "signature": "0x57acf9406a4a39f26a5e002c165f2b6540c67112881a039c3826cf0499db68da186ba309a62dbe3df85e07d435ad3f7b602fefa89bb70aa9b548340d3f2295051c",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}