{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x6c1ef2e9c33e2ba1c0d352e41e06e8a3c7721c6f\"}",
    "nonce": "0xab37a6e90cdb7aae76029429efd97e003ac683acb4b24b2781d844a9f148ee61",
    "signature": "0x882b5788dd818b0e8d0e4d4dba350f1536a7dc2784ca3eb6cf1e5da45782617678f5a304190677bcc9591941e179cf34b79152546cab76862fcb63c03d66bfdf1b",
    "signer": "0x2677Fe1A19755C97827AEd80A01f83f5bbA86292",
    "userId": "849899617"
  }
}