{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x286e7ad8f9447d0112953bdb1684a4b4192ecb76\"}",
    "nonce": "0x0bfb9a0adf2db911dd09c93b6e6107df77767ccecd7c6909ae42ffb65ad0954a",
    "signature": "0x186f622c4b97ad6f5e47c0fa918718375feca783bf15ac5e0b7ff9fc47797ab157abc7d0ebe22e5df880769e29ef4d7f44eda5c82011ae3385448cc28a5ccbc91c",
    "signer": "0x4565cbDaB3cf9cFcdB0DB1334412dfadC4B29bB8",
    "userId": "744239072"
  }
}