{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354908",
    "entityType": "User",
    "nonce": "0x8862b9b190c17cf019a583894646584c2306518e71b6810353cd28fa47bd3731",
    "signature": "0x9cdd4c61fe79c5b8009d66b1845a3c061eb1a9d2ac99ee591dd256dea8463ad47f5dd1301af960030850ea5d6d42d366e71a2bb51575fa08e7a2a3c65d64a9721b",
    "signer": "0xF6F9F433Ab5dDe3c96D63C2fFAa64b610599a410",
    "userId": "80682"
  }
}