{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0x32910ca89eb8e3e984b6d7948e0d1f7c6890a9b36f68edd016a490ed13135206",
    "signature": "0x5df151c43c2619c3ed571de647597a4b8c513a023b0b58a36d9edbfcb3cfe413602b367f7c42d3bcf0c088226a50a53b9deb1f7e0ae0895f018795e1e5a37c861b",
    "signer": "0xd0a859CF2624a008D7A044Fc8d234f7A34024587",
    "userId": "917830143"
  }
}