{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "871265248",
    "entityType": "User",
    "nonce": "0x21b9811ccb1bf79fc0ee19a7427886f9654d2c7ae0d6bf7e8bf07a690b08047d",
    "signature": "0x34830e9364be7f94dfa28ee9ea3eb951261c54c5ae970e90ea5d173d2cf3597b5850dfb8a45d762602ebb67c87eb58fd508a878e3316f6e16b53b789d00b21cc1b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}