{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0xadaeb4bfaee4d52f7db517670cad8a46ddb96d258fd2f71836c0fe548d0372dc",
    "signature": "0x0e717b684bba6a143a7fea288b2c7c2c00121fe1f05de978c766a6c626aab2b92e40270ff92fcf7b683cd66bfcec6b383dd606bf0c15df081e8a0e17189556981b",
    "signer": "0x87FC3581f96D45b347BB39E15f25079950C5Cc27",
    "userId": "339826419"
  }
}