{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "703353336",
    "entityType": "User",
    "nonce": "0xda619175549ce2fc8fb3a05273b33d8d0b355caccc69c30d007157eb5ce6813e",
    "signature": "0x507cbe51567849143eb33a0e2041e1b43f1b517ed0a141ee9587ddd1065c442610d0c92c4437cdc5f7c1aacd081aec3bf2bcae810739e70b8e41eccde194fc6d1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}