{
  "manageEntity": {
    "action": "Create",
    "entityType": "Grant",
    "metadata": "{\"grantee_address\":\"0x2cc593fc814461263d282a84286fd4f72c79562e\"}",
    "nonce": "0xc63f02a501f34d0604c1f07344d416c18a28f88cf29e219fee8ca9c7a0193f40",
    "signature": "0x2f2592e36c4b49f93ff4c207fb6f145c6cacc46e61f1ad9504a00640475ce39d18e6af151f3721d1f6b07229239faf01de06263397f03b94b1fca6262d6be1e31b",
    "signer": "0x4989036df2a8Dcba90bb71C1bA01924bDd4d4C1a",
    "userId": "20458377"
  }
}