{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x8e6a0c5e8c93775d1f70ac5591514a5e00bac7f5\"}",
    "nonce": "0x9c0b0dc80dbe9ae30ff24f8c4d7e6aa530d4626904d94f5c26a8d7cfa13ac758",
    "signature": "0x851eb08cdc8eb2bb1f6a7725449a96561a0d2a4900714adbee30f61516e8d6b04097f3ceab1cc5974a150ccc9c5bed1fcd11062945eb38b31313b7d54a28d00a1b",
    "signer": "0xaCF8f673423Bb51A44344Bf20eDE293983745761",
    "userId": "453682523"
  }
}